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Finding the Third Proportional to 54,683 and 69,874

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Solution

The third proportional to 54,683 and 69,874 is: 89,285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,683 : 69,874 = 69,874 : x
  2. Step 2: Convert to fraction form
    54,683/69,874 = 69,874/x
  3. Step 3: Cross multiply
    54,683x = 69,874 × 69,874
  4. Step 4: Simplify right side
    54,683x = 4,882,375,876
  5. Step 5: Solve for x
    x = 4,882,375,876/54,683
  6. Step 6: Final answer
    x = 89,285.08

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.