Question

720:840::60:? alternative

Answer 1

720:840::60:x

720/840=60/x

720*x=840*60
x=50400/720
x=70

Answer 2

Given :

720:840::60:?

To Find :

Find the missing value

Solution:

720:840::60:?

Let the missing value be x

So,720:840::60:x

$\Rightarrow \frac{720}{840}=\frac{60}{x}\\\Rightarrow 720x=60 \times 840\\\Rightarrow x=\frac{60 \times 840}{720}\\\Rightarrow x=70$

Hence The missing value is 70