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Finding the Fourth Proportional to 41.61, 62.07 and 38.91

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Solution

The fourth proportional to 41.61, 62.07 and 38.91 is: 58.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.61 : 62.07 = 38.91 : x
  2. Step 2: Convert to fraction form
    41.61/62.07 = 38.91/x
  3. Step 3: Cross multiply
    41.61x = 62.07 × 38.91
  4. Step 4: Simplify right side
    41.61x = 2,415.14
  5. Step 5: Solve for x
    x = 2,415.14/41.61
  6. Step 6: Final answer
    x = 58.04

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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.