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Finding the Fourth Proportional to 63.71, 87.76 and 60.62

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Solution

The fourth proportional to 63.71, 87.76 and 60.62 is: 83.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.71 : 87.76 = 60.62 : x
  2. Step 2: Convert to fraction form
    63.71/87.76 = 60.62/x
  3. Step 3: Cross multiply
    63.71x = 87.76 × 60.62
  4. Step 4: Simplify right side
    63.71x = 5,319.93
  5. Step 5: Solve for x
    x = 5,319.93/63.71
  6. Step 6: Final answer
    x = 83.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.