Question

36:45:80:100 true false are in proportion

Answer 1

The relation 36 : 45 :: 80 : 100 is in proportion.

Step-by-step explanation:

The ratio in the format a : b :: c : d means $\frac{a}{b} = \frac{c}{d}$

Now, we can check whether the ratio a : b and c : d are same or not.

Here in this problem we are given 36 : 45 :: 80 : 100

Therefore, $\frac{36}{45} =\frac{4}{5}$ and  

$\frac{80}{100} = \frac{4}{5}$

Hence, $\frac{36}{45} =\frac{80}{100}$

Therefore, the relation 36 : 45 :: 80 : 100 is in proportion. (Answer)

Answer 2

Yes, it is true that they are in proportion.

Step-by-step explanation:

We know that a:b::c:d are said to be in proportion if a:b, c:d are equal.

Now in 36:45::80:100

Here, 36:45 can be written as 36/45=4/5

Also, 80/100=4/5

Since, 36/45=80/100=4/5

Hence,36:45::80:100 are said to be in proportion.