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Finding the Third Proportional to 38,508 and 51,918

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Solution

The third proportional to 38,508 and 51,918 is: 69,997.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,508 : 51,918 = 51,918 : x
  2. Step 2: Convert to fraction form
    38,508/51,918 = 51,918/x
  3. Step 3: Cross multiply
    38,508x = 51,918 × 51,918
  4. Step 4: Simplify right side
    38,508x = 2,695,478,724
  5. Step 5: Solve for x
    x = 2,695,478,724/38,508
  6. Step 6: Final answer
    x = 69,997.89

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.