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Finding the Fourth Proportional to 36.81, 54.83 and 36.02

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Solution

The fourth proportional to 36.81, 54.83 and 36.02 is: 53.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.81 : 54.83 = 36.02 : x
  2. Step 2: Convert to fraction form
    36.81/54.83 = 36.02/x
  3. Step 3: Cross multiply
    36.81x = 54.83 × 36.02
  4. Step 4: Simplify right side
    36.81x = 1,975.20
  5. Step 5: Solve for x
    x = 1,975.20/36.81
  6. Step 6: Final answer
    x = 53.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.