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Finding the Third Proportional to 25,400 and 54,579

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Solution

The third proportional to 25,400 and 54,579 is: 117,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400 : 54,579 = 54,579 : x
  2. Step 2: Convert to fraction form
    25,400/54,579 = 54,579/x
  3. Step 3: Cross multiply
    25,400x = 54,579 × 54,579
  4. Step 4: Simplify right side
    25,400x = 2,978,867,241
  5. Step 5: Solve for x
    x = 2,978,867,241/25,400
  6. Step 6: Final answer
    x = 117,278.24

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.