Home / 66,909.28-92,337.68-38,614.88

Finding the Fourth Proportional to 66,909.28, 92,337.68 and 38,614.88

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Solution

The fourth proportional to 66,909.28, 92,337.68 and 38,614.88 is: 53,290.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,909.28 : 92,337.68 = 38,614.88 : x
  2. Step 2: Convert to fraction form
    66,909.28/92,337.68 = 38,614.88/x
  3. Step 3: Cross multiply
    66,909.28x = 92,337.68 × 38,614.88
  4. Step 4: Simplify right side
    66,909.28x = 3,565,608,432.68
  5. Step 5: Solve for x
    x = 3,565,608,432.68/66,909.28
  6. Step 6: Final answer
    x = 53,290.19

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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.