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Finding the Third Proportional to 38,675 and 81,926

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Solution

The third proportional to 38,675 and 81,926 is: 173,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,675 : 81,926 = 81,926 : x
  2. Step 2: Convert to fraction form
    38,675/81,926 = 81,926/x
  3. Step 3: Cross multiply
    38,675x = 81,926 × 81,926
  4. Step 4: Simplify right side
    38,675x = 6,711,869,476
  5. Step 5: Solve for x
    x = 6,711,869,476/38,675
  6. Step 6: Final answer
    x = 173,545.43

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.