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Finding the Fourth Proportional to 62.14, 85.25 and 58.66

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Solution

The fourth proportional to 62.14, 85.25 and 58.66 is: 80.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.14 : 85.25 = 58.66 : x
  2. Step 2: Convert to fraction form
    62.14/85.25 = 58.66/x
  3. Step 3: Cross multiply
    62.14x = 85.25 × 58.66
  4. Step 4: Simplify right side
    62.14x = 5,000.77
  5. Step 5: Solve for x
    x = 5,000.77/62.14
  6. Step 6: Final answer
    x = 80.48

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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.