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Finding the Third Proportional to 54,436 and 81,654

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Solution

The third proportional to 54,436 and 81,654 is: 122,481

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,436 : 81,654 = 81,654 : x
  2. Step 2: Convert to fraction form
    54,436/81,654 = 81,654/x
  3. Step 3: Cross multiply
    54,436x = 81,654 × 81,654
  4. Step 4: Simplify right side
    54,436x = 6,667,375,716
  5. Step 5: Solve for x
    x = 6,667,375,716/54,436
  6. Step 6: Final answer
    x = 122,481

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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.