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Finding the Fourth Proportional to 88,269.12, 132,329 and 38,311.42

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Solution

The fourth proportional to 88,269.12, 132,329 and 38,311.42 is: 57,434.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,269.12 : 132,329 = 38,311.42 : x
  2. Step 2: Convert to fraction form
    88,269.12/132,329 = 38,311.42/x
  3. Step 3: Cross multiply
    88,269.12x = 132,329 × 38,311.42
  4. Step 4: Simplify right side
    88,269.12x = 5,069,711,897.18
  5. Step 5: Solve for x
    x = 5,069,711,897.18/88,269.12
  6. Step 6: Final answer
    x = 57,434.72

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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.