Question

Find the value of x 36: 81 : : x : 63

Answer 1

36:81::x:63 =

$\frac{36}{81} = \frac{x}{63} \\ = 81x = 63 \times 36 \\ = x = \frac{63 \times 36}{81} \\ \: \: \: \: \: \: \: \: \: = 28$

Answer 2

36 : 81 : : x : 63
=36x63=81x
=2268=81x
=x=2268/81
=x=28