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Finding the Fourth Proportional to 56,472.78, 84,675.96 and 21,414.90

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Solution

The fourth proportional to 56,472.78, 84,675.96 and 21,414.90 is: 32,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,472.78 : 84,675.96 = 21,414.90 : x
  2. Step 2: Convert to fraction form
    56,472.78/84,675.96 = 21,414.90/x
  3. Step 3: Cross multiply
    56,472.78x = 84,675.96 × 21,414.90
  4. Step 4: Simplify right side
    56,472.78x = 1,813,327,215.80
  5. Step 5: Solve for x
    x = 1,813,327,215.80/56,472.78
  6. Step 6: Final answer
    x = 32,109.76

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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.