Question

56:30::78:____
What is the answer

Answer 1

Step-by-step explanation:

let the proportion be x

formula =a×d= b×c

so, 56×x=30×78

56×x= 2,340

x= 2340/56

x= 41.78

so, answer is 41.78 approx

Hope I help you

please follow me

Answer 2

The missing term of the given proportions is 41.78 or 42 approx.

Given,

The proportions = 56:30::78:____.

To Find,

The missing term.

Solution,

Before solving the question, we must understand the concept of extreme and mean in the proportions.

Extreme:- If a proportion is written in ratio form using a colon, the extremes are the values that are furthest apart.

For example:- p : q :: r : s. In this, 'p' and 's' is the extreme of proportions.

Mean:- In proportions, the means are the values associated with the middle terms.

For example:- p : q :: r : s. In this, 'q' and 'r' is the mean of proportions.

So, to find the missing term, we will use the formula.

Product of extreme = product of mean.

⇒ p × s = q × r.

Let the missing term be x.

⇒ 56 × x = 30 × 78

⇒ 56x = 2340

On dividing, we get the value of x,

⇒ x = 41.78 or 42 approx.

The missing term of the given proportions is 41.78 or 42 approx.

#SPJ2