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Finding the Third Proportional to 38,816 and 54,464

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Solution

The third proportional to 38,816 and 54,464 is: 76,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,816 : 54,464 = 54,464 : x
  2. Step 2: Convert to fraction form
    38,816/54,464 = 54,464/x
  3. Step 3: Cross multiply
    38,816x = 54,464 × 54,464
  4. Step 4: Simplify right side
    38,816x = 2,966,327,296
  5. Step 5: Solve for x
    x = 2,966,327,296/38,816
  6. Step 6: Final answer
    x = 76,420.22

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.