Home / 66,139.28-91,265.88-37,460.24

Finding the Fourth Proportional to 66,139.28, 91,265.88 and 37,460.24

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Solution

The fourth proportional to 66,139.28, 91,265.88 and 37,460.24 is: 51,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,139.28 : 91,265.88 = 37,460.24 : x
  2. Step 2: Convert to fraction form
    66,139.28/91,265.88 = 37,460.24/x
  3. Step 3: Cross multiply
    66,139.28x = 91,265.88 × 37,460.24
  4. Step 4: Simplify right side
    66,139.28x = 3,418,841,768.61
  5. Step 5: Solve for x
    x = 3,418,841,768.61/66,139.28
  6. Step 6: Final answer
    x = 51,691.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.