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Finding the Fourth Proportional to 41.74, 57.57 and 35.61

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Solution

The fourth proportional to 41.74, 57.57 and 35.61 is: 49.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.74 : 57.57 = 35.61 : x
  2. Step 2: Convert to fraction form
    41.74/57.57 = 35.61/x
  3. Step 3: Cross multiply
    41.74x = 57.57 × 35.61
  4. Step 4: Simplify right side
    41.74x = 2,050.07
  5. Step 5: Solve for x
    x = 2,050.07/41.74
  6. Step 6: Final answer
    x = 49.12

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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.