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Finding the Third Proportional to 39,882 and 86,368

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Solution

The third proportional to 39,882 and 86,368 is: 187,037.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,882 : 86,368 = 86,368 : x
  2. Step 2: Convert to fraction form
    39,882/86,368 = 86,368/x
  3. Step 3: Cross multiply
    39,882x = 86,368 × 86,368
  4. Step 4: Simplify right side
    39,882x = 7,459,431,424
  5. Step 5: Solve for x
    x = 7,459,431,424/39,882
  6. Step 6: Final answer
    x = 187,037.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.