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Finding the Fourth Proportional to 36.76, 50.40 and 36.36

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Solution

The fourth proportional to 36.76, 50.40 and 36.36 is: 49.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.76 : 50.40 = 36.36 : x
  2. Step 2: Convert to fraction form
    36.76/50.40 = 36.36/x
  3. Step 3: Cross multiply
    36.76x = 50.40 × 36.36
  4. Step 4: Simplify right side
    36.76x = 1,832.54
  5. Step 5: Solve for x
    x = 1,832.54/36.76
  6. Step 6: Final answer
    x = 49.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.