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Finding the Third Proportional to 54,458 and 83,289

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Solution

The third proportional to 54,458 and 83,289 is: 127,383.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,458 : 83,289 = 83,289 : x
  2. Step 2: Convert to fraction form
    54,458/83,289 = 83,289/x
  3. Step 3: Cross multiply
    54,458x = 83,289 × 83,289
  4. Step 4: Simplify right side
    54,458x = 6,937,057,521
  5. Step 5: Solve for x
    x = 6,937,057,521/54,458
  6. Step 6: Final answer
    x = 127,383.63

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.