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Finding the Third Proportional to 33,956 and 68,830

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Solution

The third proportional to 33,956 and 68,830 is: 139,520.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,956 : 68,830 = 68,830 : x
  2. Step 2: Convert to fraction form
    33,956/68,830 = 68,830/x
  3. Step 3: Cross multiply
    33,956x = 68,830 × 68,830
  4. Step 4: Simplify right side
    33,956x = 4,737,568,900
  5. Step 5: Solve for x
    x = 4,737,568,900/33,956
  6. Step 6: Final answer
    x = 139,520.82

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.