Question

find the fourth propotional of 30,40and50
​

Answer 1

Answer:

Step-by-step explanation:

The fourth proportional be x..

HENCE, THE EQUATION IS,

30:40::50:x

By using,

Product of extreme = product of mean.

30x = 40× 50

x = 200/3

PLEASE MARK ME AS BRAINLIEST AND FOLLOW ME PLEASE.

Answer 2

The fourth propotional to 30, 40, 50 is.

To find :-

The fourth propotional to 30, 40, 50.

Solution :-

Let the fourth propotional to 30, 40, 50 be x.

Then,  30, 40, 50 and x are in proportional.

i.e.

$\frac{30}{40} = \frac{50}{x}$

Let's solve it.

$\frac{30}{40} = \frac{50}{x} \\ \\ => 30 \times x = 50 \times 40 \\ (By \: \:cross \: \: multiplication) \\ \\=> x=\frac{50\times40}{30} \\ \\ => x=66.6$

Answer :-

Therefore, the fourth proportional to 30, 40, 50 is 66.6