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Finding the Fourth Proportional to 60,400.92, 90,560.04 and 30,761.40

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Solution

The fourth proportional to 60,400.92, 90,560.04 and 30,761.40 is: 46,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,400.92 : 90,560.04 = 30,761.40 : x
  2. Step 2: Convert to fraction form
    60,400.92/90,560.04 = 30,761.40/x
  3. Step 3: Cross multiply
    60,400.92x = 90,560.04 × 30,761.40
  4. Step 4: Simplify right side
    60,400.92x = 2,785,753,614.46
  5. Step 5: Solve for x
    x = 2,785,753,614.46/60,400.92
  6. Step 6: Final answer
    x = 46,121.05

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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.