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Finding the Third Proportional to 40,607 and 87,676

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Solution

The third proportional to 40,607 and 87,676 is: 189,304.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,607 : 87,676 = 87,676 : x
  2. Step 2: Convert to fraction form
    40,607/87,676 = 87,676/x
  3. Step 3: Cross multiply
    40,607x = 87,676 × 87,676
  4. Step 4: Simplify right side
    40,607x = 7,687,080,976
  5. Step 5: Solve for x
    x = 7,687,080,976/40,607
  6. Step 6: Final answer
    x = 189,304.33

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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.