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Finding the Fourth Proportional to 71,500.92, 107,252 and 18,192.95

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Solution

The fourth proportional to 71,500.92, 107,252 and 18,192.95 is: 27,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,500.92 : 107,252 = 18,192.95 : x
  2. Step 2: Convert to fraction form
    71,500.92/107,252 = 18,192.95/x
  3. Step 3: Cross multiply
    71,500.92x = 107,252 × 18,192.95
  4. Step 4: Simplify right side
    71,500.92x = 1,951,230,273.40
  5. Step 5: Solve for x
    x = 1,951,230,273.40/71,500.92
  6. Step 6: Final answer
    x = 27,289.58

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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.