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Finding the Fourth Proportional to 60,139.38, 90,138.34 and 24,578.76

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Solution

The fourth proportional to 60,139.38, 90,138.34 and 24,578.76 is: 36,839.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,139.38 : 90,138.34 = 24,578.76 : x
  2. Step 2: Convert to fraction form
    60,139.38/90,138.34 = 24,578.76/x
  3. Step 3: Cross multiply
    60,139.38x = 90,138.34 × 24,578.76
  4. Step 4: Simplify right side
    60,139.38x = 2,215,488,502.76
  5. Step 5: Solve for x
    x = 2,215,488,502.76/60,139.38
  6. Step 6: Final answer
    x = 36,839.23

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1.5x scale

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.