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Finding the Third Proportional to 39,802 and 86,704

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Solution

The third proportional to 39,802 and 86,704 is: 188,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802 : 86,704 = 86,704 : x
  2. Step 2: Convert to fraction form
    39,802/86,704 = 86,704/x
  3. Step 3: Cross multiply
    39,802x = 86,704 × 86,704
  4. Step 4: Simplify right side
    39,802x = 7,517,583,616
  5. Step 5: Solve for x
    x = 7,517,583,616/39,802
  6. Step 6: Final answer
    x = 188,874.52

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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.