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Finding the Third Proportional to 39,609 and 86,049

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Solution

The third proportional to 39,609 and 86,049 is: 186,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,609 : 86,049 = 86,049 : x
  2. Step 2: Convert to fraction form
    39,609/86,049 = 86,049/x
  3. Step 3: Cross multiply
    39,609x = 86,049 × 86,049
  4. Step 4: Simplify right side
    39,609x = 7,404,430,401
  5. Step 5: Solve for x
    x = 7,404,430,401/39,609
  6. Step 6: Final answer
    x = 186,938.08

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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.