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Finding the Fourth Proportional to 66.02, 98.99 and 29.92

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Solution

The fourth proportional to 66.02, 98.99 and 29.92 is: 44.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.02 : 98.99 = 29.92 : x
  2. Step 2: Convert to fraction form
    66.02/98.99 = 29.92/x
  3. Step 3: Cross multiply
    66.02x = 98.99 × 29.92
  4. Step 4: Simplify right side
    66.02x = 2,961.78
  5. Step 5: Solve for x
    x = 2,961.78/66.02
  6. Step 6: Final answer
    x = 44.87

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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.