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Finding the Fourth Proportional to 41.73, 57.61 and 30.09

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Solution

The fourth proportional to 41.73, 57.61 and 30.09 is: 41.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.73 : 57.61 = 30.09 : x
  2. Step 2: Convert to fraction form
    41.73/57.61 = 30.09/x
  3. Step 3: Cross multiply
    41.73x = 57.61 × 30.09
  4. Step 4: Simplify right side
    41.73x = 1,733.41
  5. Step 5: Solve for x
    x = 1,733.41/41.73
  6. Step 6: Final answer
    x = 41.54

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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.