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Finding the Fourth Proportional to 81,753.72, 112,850.97 and 47,773.26

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Solution

The fourth proportional to 81,753.72, 112,850.97 and 47,773.26 is: 65,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,753.72 : 112,850.97 = 47,773.26 : x
  2. Step 2: Convert to fraction form
    81,753.72/112,850.97 = 47,773.26/x
  3. Step 3: Cross multiply
    81,753.72x = 112,850.97 × 47,773.26
  4. Step 4: Simplify right side
    81,753.72x = 5,391,257,927.94
  5. Step 5: Solve for x
    x = 5,391,257,927.94/81,753.72
  6. Step 6: Final answer
    x = 65,945.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.