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Finding the Fourth Proportional to 60, 90.02 and 17.25

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Solution

The fourth proportional to 60, 90.02 and 17.25 is: 25.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60 : 90.02 = 17.25 : x
  2. Step 2: Convert to fraction form
    60/90.02 = 17.25/x
  3. Step 3: Cross multiply
    60x = 90.02 × 17.25
  4. Step 4: Simplify right side
    60x = 1,552.76
  5. Step 5: Solve for x
    x = 1,552.76/60
  6. Step 6: Final answer
    x = 25.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.