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Finding the Fourth Proportional to 42.25, 57.98 and 41.83

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Solution

The fourth proportional to 42.25, 57.98 and 41.83 is: 57.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42.25 : 57.98 = 41.83 : x
  2. Step 2: Convert to fraction form
    42.25/57.98 = 41.83/x
  3. Step 3: Cross multiply
    42.25x = 57.98 × 41.83
  4. Step 4: Simplify right side
    42.25x = 2,425.30
  5. Step 5: Solve for x
    x = 2,425.30/42.25
  6. Step 6: Final answer
    x = 57.40

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.