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Finding the Third Proportional to 40,079 and 86,581

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Solution

The third proportional to 40,079 and 86,581 is: 187,037.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,079 : 86,581 = 86,581 : x
  2. Step 2: Convert to fraction form
    40,079/86,581 = 86,581/x
  3. Step 3: Cross multiply
    40,079x = 86,581 × 86,581
  4. Step 4: Simplify right side
    40,079x = 7,496,269,561
  5. Step 5: Solve for x
    x = 7,496,269,561/40,079
  6. Step 6: Final answer
    x = 187,037.34

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.