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Finding the Third Proportional to 54,139 and 84,948

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Solution

The third proportional to 54,139 and 84,948 is: 133,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,139 : 84,948 = 84,948 : x
  2. Step 2: Convert to fraction form
    54,139/84,948 = 84,948/x
  3. Step 3: Cross multiply
    54,139x = 84,948 × 84,948
  4. Step 4: Simplify right side
    54,139x = 7,216,162,704
  5. Step 5: Solve for x
    x = 7,216,162,704/54,139
  6. Step 6: Final answer
    x = 133,289.55

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.