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Finding the Third Proportional to 54,885 and 80,373

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Solution

The third proportional to 54,885 and 80,373 is: 117,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,885 : 80,373 = 80,373 : x
  2. Step 2: Convert to fraction form
    54,885/80,373 = 80,373/x
  3. Step 3: Cross multiply
    54,885x = 80,373 × 80,373
  4. Step 4: Simplify right side
    54,885x = 6,459,819,129
  5. Step 5: Solve for x
    x = 6,459,819,129/54,885
  6. Step 6: Final answer
    x = 117,697.35

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.