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Finding the Fourth Proportional to 66.01, 99.10 and 40.27

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Solution

The fourth proportional to 66.01, 99.10 and 40.27 is: 60.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.01 : 99.10 = 40.27 : x
  2. Step 2: Convert to fraction form
    66.01/99.10 = 40.27/x
  3. Step 3: Cross multiply
    66.01x = 99.10 × 40.27
  4. Step 4: Simplify right side
    66.01x = 3,990.28
  5. Step 5: Solve for x
    x = 3,990.28/66.01
  6. Step 6: Final answer
    x = 60.45

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