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Finding the Third Proportional to 39,755 and 86,881

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Solution

The third proportional to 39,755 and 86,881 is: 189,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,755 : 86,881 = 86,881 : x
  2. Step 2: Convert to fraction form
    39,755/86,881 = 86,881/x
  3. Step 3: Cross multiply
    39,755x = 86,881 × 86,881
  4. Step 4: Simplify right side
    39,755x = 7,548,308,161
  5. Step 5: Solve for x
    x = 7,548,308,161/39,755
  6. Step 6: Final answer
    x = 189,870.66

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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.