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Finding the Third Proportional to 40,260 and 54,672

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Solution

The third proportional to 40,260 and 54,672 is: 74,243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,260 : 54,672 = 54,672 : x
  2. Step 2: Convert to fraction form
    40,260/54,672 = 54,672/x
  3. Step 3: Cross multiply
    40,260x = 54,672 × 54,672
  4. Step 4: Simplify right side
    40,260x = 2,989,027,584
  5. Step 5: Solve for x
    x = 2,989,027,584/40,260
  6. Step 6: Final answer
    x = 74,243.11

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.