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Finding the Third Proportional to 54,478.13 and 81,714.38

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Solution

The third proportional to 54,478.13 and 81,714.38 is: 122,567.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,478.13 : 81,714.38 = 81,714.38 : x
  2. Step 2: Convert to fraction form
    54,478.13/81,714.38 = 81,714.38/x
  3. Step 3: Cross multiply
    54,478.13x = 81,714.38 × 81,714.38
  4. Step 4: Simplify right side
    54,478.13x = 6,677,239,081.64
  5. Step 5: Solve for x
    x = 6,677,239,081.64/54,478.13
  6. Step 6: Final answer
    x = 122,567.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.