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Finding the Fourth Proportional to 81,818.67, 122,727.81 and 22,654.15

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Solution

The fourth proportional to 81,818.67, 122,727.81 and 22,654.15 is: 33,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,818.67 : 122,727.81 = 22,654.15 : x
  2. Step 2: Convert to fraction form
    81,818.67/122,727.81 = 22,654.15/x
  3. Step 3: Cross multiply
    81,818.67x = 122,727.81 × 22,654.15
  4. Step 4: Simplify right side
    81,818.67x = 2,780,293,867.62
  5. Step 5: Solve for x
    x = 2,780,293,867.62/81,818.67
  6. Step 6: Final answer
    x = 33,981.17

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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.