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Finding the Fourth Proportional to 75,126.29, 112,523.29 and 51,377.54

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Solution

The fourth proportional to 75,126.29, 112,523.29 and 51,377.54 is: 76,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,126.29 : 112,523.29 = 51,377.54 : x
  2. Step 2: Convert to fraction form
    75,126.29/112,523.29 = 51,377.54/x
  3. Step 3: Cross multiply
    75,126.29x = 112,523.29 × 51,377.54
  4. Step 4: Simplify right side
    75,126.29x = 5,781,169,141.85
  5. Step 5: Solve for x
    x = 5,781,169,141.85/75,126.29
  6. Step 6: Final answer
    x = 76,952.68

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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.