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Finding the Third Proportional to 57,119 and 85,342.50

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Solution

The third proportional to 57,119 and 85,342.50 is: 127,511.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119 : 85,342.50 = 85,342.50 : x
  2. Step 2: Convert to fraction form
    57,119/85,342.50 = 85,342.50/x
  3. Step 3: Cross multiply
    57,119x = 85,342.50 × 85,342.50
  4. Step 4: Simplify right side
    57,119x = 7,283,342,306.25
  5. Step 5: Solve for x
    x = 7,283,342,306.25/57,119
  6. Step 6: Final answer
    x = 127,511.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.