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Finding the Fourth Proportional to 68,614.73, 102,922.10 and 45,235.70

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Solution

The fourth proportional to 68,614.73, 102,922.10 and 45,235.70 is: 67,853.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,614.73 : 102,922.10 = 45,235.70 : x
  2. Step 2: Convert to fraction form
    68,614.73/102,922.10 = 45,235.70/x
  3. Step 3: Cross multiply
    68,614.73x = 102,922.10 × 45,235.70
  4. Step 4: Simplify right side
    68,614.73x = 4,655,753,238.97
  5. Step 5: Solve for x
    x = 4,655,753,238.97/68,614.73
  6. Step 6: Final answer
    x = 67,853.55

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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.