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Finding the Fourth Proportional to 62.54, 86.71 and 60.47

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Solution

The fourth proportional to 62.54, 86.71 and 60.47 is: 83.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.54 : 86.71 = 60.47 : x
  2. Step 2: Convert to fraction form
    62.54/86.71 = 60.47/x
  3. Step 3: Cross multiply
    62.54x = 86.71 × 60.47
  4. Step 4: Simplify right side
    62.54x = 5,242.77
  5. Step 5: Solve for x
    x = 5,242.77/62.54
  6. Step 6: Final answer
    x = 83.84

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.