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Finding the Third Proportional to 38,118 and 54,459

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Solution

The third proportional to 38,118 and 54,459 is: 77,805.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,118 : 54,459 = 54,459 : x
  2. Step 2: Convert to fraction form
    38,118/54,459 = 54,459/x
  3. Step 3: Cross multiply
    38,118x = 54,459 × 54,459
  4. Step 4: Simplify right side
    38,118x = 2,965,782,681
  5. Step 5: Solve for x
    x = 2,965,782,681/38,118
  6. Step 6: Final answer
    x = 77,805.31

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.