Home / 51,385.92-77,092.56-21,805.44

Finding the Fourth Proportional to 51,385.92, 77,092.56 and 21,805.44

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Solution

The fourth proportional to 51,385.92, 77,092.56 and 21,805.44 is: 32,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,385.92 : 77,092.56 = 21,805.44 : x
  2. Step 2: Convert to fraction form
    51,385.92/77,092.56 = 21,805.44/x
  3. Step 3: Cross multiply
    51,385.92x = 77,092.56 × 21,805.44
  4. Step 4: Simplify right side
    51,385.92x = 1,681,037,191.53
  5. Step 5: Solve for x
    x = 1,681,037,191.53/51,385.92
  6. Step 6: Final answer
    x = 32,713.97

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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.