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Finding the Fourth Proportional to 71.07, 98.06 and 41.97

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Solution

The fourth proportional to 71.07, 98.06 and 41.97 is: 57.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71.07 : 98.06 = 41.97 : x
  2. Step 2: Convert to fraction form
    71.07/98.06 = 41.97/x
  3. Step 3: Cross multiply
    71.07x = 98.06 × 41.97
  4. Step 4: Simplify right side
    71.07x = 4,115.68
  5. Step 5: Solve for x
    x = 4,115.68/71.07
  6. Step 6: Final answer
    x = 57.91

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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.