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Finding the Third Proportional to 43,832 and 71,212

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Solution

The third proportional to 43,832 and 71,212 is: 115,695.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,832 : 71,212 = 71,212 : x
  2. Step 2: Convert to fraction form
    43,832/71,212 = 71,212/x
  3. Step 3: Cross multiply
    43,832x = 71,212 × 71,212
  4. Step 4: Simplify right side
    43,832x = 5,071,148,944
  5. Step 5: Solve for x
    x = 5,071,148,944/43,832
  6. Step 6: Final answer
    x = 115,695.13

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.