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Finding the Third Proportional to 39,560 and 85,654

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Solution

The third proportional to 39,560 and 85,654 is: 185,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,560 : 85,654 = 85,654 : x
  2. Step 2: Convert to fraction form
    39,560/85,654 = 85,654/x
  3. Step 3: Cross multiply
    39,560x = 85,654 × 85,654
  4. Step 4: Simplify right side
    39,560x = 7,336,607,716
  5. Step 5: Solve for x
    x = 7,336,607,716/39,560
  6. Step 6: Final answer
    x = 185,455.20

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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.