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Finding the Third Proportional to 36,987 and 80,790

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Solution

The third proportional to 36,987 and 80,790 is: 176,468.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,987 : 80,790 = 80,790 : x
  2. Step 2: Convert to fraction form
    36,987/80,790 = 80,790/x
  3. Step 3: Cross multiply
    36,987x = 80,790 × 80,790
  4. Step 4: Simplify right side
    36,987x = 6,527,024,100
  5. Step 5: Solve for x
    x = 6,527,024,100/36,987
  6. Step 6: Final answer
    x = 176,468.06

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.