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Finding the Third Proportional to 55,425 and 83,718

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Solution

The third proportional to 55,425 and 83,718 is: 126,453.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,425 : 83,718 = 83,718 : x
  2. Step 2: Convert to fraction form
    55,425/83,718 = 83,718/x
  3. Step 3: Cross multiply
    55,425x = 83,718 × 83,718
  4. Step 4: Simplify right side
    55,425x = 7,008,703,524
  5. Step 5: Solve for x
    x = 7,008,703,524/55,425
  6. Step 6: Final answer
    x = 126,453.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.