Question

In the following question find out the alternative which will replace the question mark. 10 : 50 :: 8 : ?

12
35
32
60

Answer 1

10:50


Let's find the relation between them

50 can be written as

50 = 10² ÷ 2

=> 50 = 100 ÷ 2

=> 50 = 50

LHS = RHS

Now similarly, the term with 8 would be

8² ÷ 2

=> 64 ÷ 2

= 32

Hence your answer is 32

Hope it helps dear friend ☺️✌️

Answer 2

solutions :-


Let the fourth proportional to the numbers 10, 50 ,8 and forth be x. Then from the definition of the fourth proportional, we must have:

10: 50 :: 8 : x or in terms of the fractions we can write;

10x = 50×8


In other words, we have x = {50×8 }/4 = 40

Hence

The forth proportional is 40

Thanks