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Finding the Fourth Proportional to 63.24, 95.30 and 61.86

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Solution

The fourth proportional to 63.24, 95.30 and 61.86 is: 93.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.24 : 95.30 = 61.86 : x
  2. Step 2: Convert to fraction form
    63.24/95.30 = 61.86/x
  3. Step 3: Cross multiply
    63.24x = 95.30 × 61.86
  4. Step 4: Simplify right side
    63.24x = 5,895.26
  5. Step 5: Solve for x
    x = 5,895.26/63.24
  6. Step 6: Final answer
    x = 93.22

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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.