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Finding the Fourth Proportional to 60,167.28, 90,251.10 and 20,723.88

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Solution

The fourth proportional to 60,167.28, 90,251.10 and 20,723.88 is: 31,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,167.28 : 90,251.10 = 20,723.88 : x
  2. Step 2: Convert to fraction form
    60,167.28/90,251.10 = 20,723.88/x
  3. Step 3: Cross multiply
    60,167.28x = 90,251.10 × 20,723.88
  4. Step 4: Simplify right side
    60,167.28x = 1,870,352,966.27
  5. Step 5: Solve for x
    x = 1,870,352,966.27/60,167.28
  6. Step 6: Final answer
    x = 31,085.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.