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Finding the Fourth Proportional to 36.18, 50.16 and 34.11

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Solution

The fourth proportional to 36.18, 50.16 and 34.11 is: 47.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.18 : 50.16 = 34.11 : x
  2. Step 2: Convert to fraction form
    36.18/50.16 = 34.11/x
  3. Step 3: Cross multiply
    36.18x = 50.16 × 34.11
  4. Step 4: Simplify right side
    36.18x = 1,710.96
  5. Step 5: Solve for x
    x = 1,710.96/36.18
  6. Step 6: Final answer
    x = 47.29

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.