Home / 71,126.28-98,149.50-39,294.90

Finding the Fourth Proportional to 71,126.28, 98,149.50 and 39,294.90

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Solution

The fourth proportional to 71,126.28, 98,149.50 and 39,294.90 is: 54,224.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,126.28 : 98,149.50 = 39,294.90 : x
  2. Step 2: Convert to fraction form
    71,126.28/98,149.50 = 39,294.90/x
  3. Step 3: Cross multiply
    71,126.28x = 98,149.50 × 39,294.90
  4. Step 4: Simplify right side
    71,126.28x = 3,856,774,787.55
  5. Step 5: Solve for x
    x = 3,856,774,787.55/71,126.28
  6. Step 6: Final answer
    x = 54,224.33

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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.