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Finding the Fourth Proportional to 96, 143.92 and 41.88

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Solution

The fourth proportional to 96, 143.92 and 41.88 is: 62.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    96 : 143.92 = 41.88 : x
  2. Step 2: Convert to fraction form
    96/143.92 = 41.88/x
  3. Step 3: Cross multiply
    96x = 143.92 × 41.88
  4. Step 4: Simplify right side
    96x = 6,027.37
  5. Step 5: Solve for x
    x = 6,027.37/96
  6. Step 6: Final answer
    x = 62.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.