Question

Are the numbers in proportion=
30,42,5,7

Answer 1

Answer:

27 is three fourths of what number?

Solution.  Proportionally:

3 : 4 = 27 : ?

"27 is nine times 3. Nine times 4 is 36."

3 : 4 = 27 : 36.

27 is three fourths of 36.

Only a multiple of 3 can be three fourths of another number, which must be that same multiple of 4.

As 3 is to 4, so any number of 3's are to an equal number of 4's.

Answer 2

Step-by-step explanation:

30 1st term ,42 2nd term ,5 3rd term ,7 4th term there fore 1st term × 4th term = 2nd term × 3rd term

= 30×7= 42×5

=210=210

=L.H.S = R.H.S

So,these proportion is the answer ...

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