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Finding the Fourth Proportional to 68,545.87, 102,818.80 and 38,562.10

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Solution

The fourth proportional to 68,545.87, 102,818.80 and 38,562.10 is: 57,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,545.87 : 102,818.80 = 38,562.10 : x
  2. Step 2: Convert to fraction form
    68,545.87/102,818.80 = 38,562.10/x
  3. Step 3: Cross multiply
    68,545.87x = 102,818.80 × 38,562.10
  4. Step 4: Simplify right side
    68,545.87x = 3,964,908,847.48
  5. Step 5: Solve for x
    x = 3,964,908,847.48/68,545.87
  6. Step 6: Final answer
    x = 57,843.15

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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.