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Finding the Fourth Proportional to 68,732.28, 103,082.34 and 38,759.46

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Solution

The fourth proportional to 68,732.28, 103,082.34 and 38,759.46 is: 58,130.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,732.28 : 103,082.34 = 38,759.46 : x
  2. Step 2: Convert to fraction form
    68,732.28/103,082.34 = 38,759.46/x
  3. Step 3: Cross multiply
    68,732.28x = 103,082.34 × 38,759.46
  4. Step 4: Simplify right side
    68,732.28x = 3,995,415,833.94
  5. Step 5: Solve for x
    x = 3,995,415,833.94/68,732.28
  6. Step 6: Final answer
    x = 58,130.12

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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.