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Finding the Fourth Proportional to 81,713.38, 122,607.04 and 41,711.71

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Solution

The fourth proportional to 81,713.38, 122,607.04 and 41,711.71 is: 62,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,713.38 : 122,607.04 = 41,711.71 : x
  2. Step 2: Convert to fraction form
    81,713.38/122,607.04 = 41,711.71/x
  3. Step 3: Cross multiply
    81,713.38x = 122,607.04 × 41,711.71
  4. Step 4: Simplify right side
    81,713.38x = 5,114,148,474.84
  5. Step 5: Solve for x
    x = 5,114,148,474.84/81,713.38
  6. Step 6: Final answer
    x = 62,586.43

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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.