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Finding the Third Proportional to 39,845 and 85,839

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Solution

The third proportional to 39,845 and 85,839 is: 184,924.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,845 : 85,839 = 85,839 : x
  2. Step 2: Convert to fraction form
    39,845/85,839 = 85,839/x
  3. Step 3: Cross multiply
    39,845x = 85,839 × 85,839
  4. Step 4: Simplify right side
    39,845x = 7,368,333,921
  5. Step 5: Solve for x
    x = 7,368,333,921/39,845
  6. Step 6: Final answer
    x = 184,924.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.