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Finding the Fourth Proportional to 67,691.10, 101,573.10 and 28,252.20

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Solution

The fourth proportional to 67,691.10, 101,573.10 and 28,252.20 is: 42,393.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,691.10 : 101,573.10 = 28,252.20 : x
  2. Step 2: Convert to fraction form
    67,691.10/101,573.10 = 28,252.20/x
  3. Step 3: Cross multiply
    67,691.10x = 101,573.10 × 28,252.20
  4. Step 4: Simplify right side
    67,691.10x = 2,869,663,535.82
  5. Step 5: Solve for x
    x = 2,869,663,535.82/67,691.10
  6. Step 6: Final answer
    x = 42,393.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.