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Finding the Fourth Proportional to 60.40, 82.24 and 60.04

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Solution

The fourth proportional to 60.40, 82.24 and 60.04 is: 81.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.40 : 82.24 = 60.04 : x
  2. Step 2: Convert to fraction form
    60.40/82.24 = 60.04/x
  3. Step 3: Cross multiply
    60.40x = 82.24 × 60.04
  4. Step 4: Simplify right side
    60.40x = 4,937.69
  5. Step 5: Solve for x
    x = 4,937.69/60.40
  6. Step 6: Final answer
    x = 81.75

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.