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Finding the Fourth Proportional to 62,129.62, 93,127.40 and 30,502.90

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Solution

The fourth proportional to 62,129.62, 93,127.40 and 30,502.90 is: 45,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,129.62 : 93,127.40 = 30,502.90 : x
  2. Step 2: Convert to fraction form
    62,129.62/93,127.40 = 30,502.90/x
  3. Step 3: Cross multiply
    62,129.62x = 93,127.40 × 30,502.90
  4. Step 4: Simplify right side
    62,129.62x = 2,840,655,769.46
  5. Step 5: Solve for x
    x = 2,840,655,769.46/62,129.62
  6. Step 6: Final answer
    x = 45,721.44

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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.