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Finding the Fourth Proportional to 63.92, 96.23 and 52.55

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Solution

The fourth proportional to 63.92, 96.23 and 52.55 is: 79.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.92 : 96.23 = 52.55 : x
  2. Step 2: Convert to fraction form
    63.92/96.23 = 52.55/x
  3. Step 3: Cross multiply
    63.92x = 96.23 × 52.55
  4. Step 4: Simplify right side
    63.92x = 5,056.89
  5. Step 5: Solve for x
    x = 5,056.89/63.92
  6. Step 6: Final answer
    x = 79.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.