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Finding the Fourth Proportional to 41.11, 56.72 and 26.55

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Solution

The fourth proportional to 41.11, 56.72 and 26.55 is: 36.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.11 : 56.72 = 26.55 : x
  2. Step 2: Convert to fraction form
    41.11/56.72 = 26.55/x
  3. Step 3: Cross multiply
    41.11x = 56.72 × 26.55
  4. Step 4: Simplify right side
    41.11x = 1,505.92
  5. Step 5: Solve for x
    x = 1,505.92/41.11
  6. Step 6: Final answer
    x = 36.63

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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.