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Finding the Fourth Proportional to 62.47, 85.89 and 58.96

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Solution

The fourth proportional to 62.47, 85.89 and 58.96 is: 81.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.47 : 85.89 = 58.96 : x
  2. Step 2: Convert to fraction form
    62.47/85.89 = 58.96/x
  3. Step 3: Cross multiply
    62.47x = 85.89 × 58.96
  4. Step 4: Simplify right side
    62.47x = 5,064.40
  5. Step 5: Solve for x
    x = 5,064.40/62.47
  6. Step 6: Final answer
    x = 81.07

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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.