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Finding the Fourth Proportional to 45.11, 67.28 and 41.27

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Solution

The fourth proportional to 45.11, 67.28 and 41.27 is: 61.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.11 : 67.28 = 41.27 : x
  2. Step 2: Convert to fraction form
    45.11/67.28 = 41.27/x
  3. Step 3: Cross multiply
    45.11x = 67.28 × 41.27
  4. Step 4: Simplify right side
    45.11x = 2,776.10
  5. Step 5: Solve for x
    x = 2,776.10/45.11
  6. Step 6: Final answer
    x = 61.54

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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.