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Finding the Fourth Proportional to 67.53, 93.09 and 60.15

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Solution

The fourth proportional to 67.53, 93.09 and 60.15 is: 82.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.53 : 93.09 = 60.15 : x
  2. Step 2: Convert to fraction form
    67.53/93.09 = 60.15/x
  3. Step 3: Cross multiply
    67.53x = 93.09 × 60.15
  4. Step 4: Simplify right side
    67.53x = 5,599.36
  5. Step 5: Solve for x
    x = 5,599.36/67.53
  6. Step 6: Final answer
    x = 82.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.