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Finding the Fourth Proportional to 62.98, 87.31 and 60.04

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Solution

The fourth proportional to 62.98, 87.31 and 60.04 is: 83.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.98 : 87.31 = 60.04 : x
  2. Step 2: Convert to fraction form
    62.98/87.31 = 60.04/x
  3. Step 3: Cross multiply
    62.98x = 87.31 × 60.04
  4. Step 4: Simplify right side
    62.98x = 5,242.09
  5. Step 5: Solve for x
    x = 5,242.09/62.98
  6. Step 6: Final answer
    x = 83.23

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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.