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Finding the Third Proportional to 39.94 and 87.52

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Solution

The third proportional to 39.94 and 87.52 is: 191.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.94 : 87.52 = 87.52 : x
  2. Step 2: Convert to fraction form
    39.94/87.52 = 87.52/x
  3. Step 3: Cross multiply
    39.94x = 87.52 × 87.52
  4. Step 4: Simplify right side
    39.94x = 7,658.98
  5. Step 5: Solve for x
    x = 7,658.98/39.94
  6. Step 6: Final answer
    x = 191.77

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.