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Finding the Third Proportional to 40,920 and 83,560

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Solution

The third proportional to 40,920 and 83,560 is: 170,632.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,920 : 83,560 = 83,560 : x
  2. Step 2: Convert to fraction form
    40,920/83,560 = 83,560/x
  3. Step 3: Cross multiply
    40,920x = 83,560 × 83,560
  4. Step 4: Simplify right side
    40,920x = 6,982,273,600
  5. Step 5: Solve for x
    x = 6,982,273,600/40,920
  6. Step 6: Final answer
    x = 170,632.30

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.