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Finding the Fourth Proportional to 40.18, 60.59 and 38.97

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Solution

The fourth proportional to 40.18, 60.59 and 38.97 is: 58.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40.18 : 60.59 = 38.97 : x
  2. Step 2: Convert to fraction form
    40.18/60.59 = 38.97/x
  3. Step 3: Cross multiply
    40.18x = 60.59 × 38.97
  4. Step 4: Simplify right side
    40.18x = 2,361.19
  5. Step 5: Solve for x
    x = 2,361.19/40.18
  6. Step 6: Final answer
    x = 58.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.