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Finding the Fourth Proportional to 81,892.74, 122,584.86 and 44,359.62

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Solution

The fourth proportional to 81,892.74, 122,584.86 and 44,359.62 is: 66,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,892.74 : 122,584.86 = 44,359.62 : x
  2. Step 2: Convert to fraction form
    81,892.74/122,584.86 = 44,359.62/x
  3. Step 3: Cross multiply
    81,892.74x = 122,584.86 × 44,359.62
  4. Step 4: Simplify right side
    81,892.74x = 5,437,817,807.35
  5. Step 5: Solve for x
    x = 5,437,817,807.35/81,892.74
  6. Step 6: Final answer
    x = 66,401.71

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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.