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Finding the Fourth Proportional to 59.39, 81.41 and 58.44

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Solution

The fourth proportional to 59.39, 81.41 and 58.44 is: 80.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.39 : 81.41 = 58.44 : x
  2. Step 2: Convert to fraction form
    59.39/81.41 = 58.44/x
  3. Step 3: Cross multiply
    59.39x = 81.41 × 58.44
  4. Step 4: Simplify right side
    59.39x = 4,757.75
  5. Step 5: Solve for x
    x = 4,757.75/59.39
  6. Step 6: Final answer
    x = 80.12

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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.