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Finding the Third Proportional to 54,882 and 80,379

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Solution

The third proportional to 54,882 and 80,379 is: 117,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,882 : 80,379 = 80,379 : x
  2. Step 2: Convert to fraction form
    54,882/80,379 = 80,379/x
  3. Step 3: Cross multiply
    54,882x = 80,379 × 80,379
  4. Step 4: Simplify right side
    54,882x = 6,460,783,641
  5. Step 5: Solve for x
    x = 6,460,783,641/54,882
  6. Step 6: Final answer
    x = 117,721.36

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.