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Finding the Fourth Proportional to 56,942, 85,306.08 and 52,645.76

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Solution

The fourth proportional to 56,942, 85,306.08 and 52,645.76 is: 78,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,942 : 85,306.08 = 52,645.76 : x
  2. Step 2: Convert to fraction form
    56,942/85,306.08 = 52,645.76/x
  3. Step 3: Cross multiply
    56,942x = 85,306.08 × 52,645.76
  4. Step 4: Simplify right side
    56,942x = 4,491,003,414.22
  5. Step 5: Solve for x
    x = 4,491,003,414.22/56,942
  6. Step 6: Final answer
    x = 78,869.79

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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.