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Finding the Fourth Proportional to 41.32, 57.03 and 25.79

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Solution

The fourth proportional to 41.32, 57.03 and 25.79 is: 35.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.32 : 57.03 = 25.79 : x
  2. Step 2: Convert to fraction form
    41.32/57.03 = 25.79/x
  3. Step 3: Cross multiply
    41.32x = 57.03 × 25.79
  4. Step 4: Simplify right side
    41.32x = 1,470.80
  5. Step 5: Solve for x
    x = 1,470.80/41.32
  6. Step 6: Final answer
    x = 35.60

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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.