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Finding the Fourth Proportional to 57, 85.19 and 44.92

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Solution

The fourth proportional to 57, 85.19 and 44.92 is: 67.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57 : 85.19 = 44.92 : x
  2. Step 2: Convert to fraction form
    57/85.19 = 44.92/x
  3. Step 3: Cross multiply
    57x = 85.19 × 44.92
  4. Step 4: Simplify right side
    57x = 3,826.73
  5. Step 5: Solve for x
    x = 3,826.73/57
  6. Step 6: Final answer
    x = 67.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.