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Finding the Third Proportional to 39,737 and 86,857

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Solution

The third proportional to 39,737 and 86,857 is: 189,851.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,737 : 86,857 = 86,857 : x
  2. Step 2: Convert to fraction form
    39,737/86,857 = 86,857/x
  3. Step 3: Cross multiply
    39,737x = 86,857 × 86,857
  4. Step 4: Simplify right side
    39,737x = 7,544,138,449
  5. Step 5: Solve for x
    x = 7,544,138,449/39,737
  6. Step 6: Final answer
    x = 189,851.74

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.