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Finding the Fourth Proportional to 36.71, 54.68 and 36.64

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Solution

The fourth proportional to 36.71, 54.68 and 36.64 is: 54.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.71 : 54.68 = 36.64 : x
  2. Step 2: Convert to fraction form
    36.71/54.68 = 36.64/x
  3. Step 3: Cross multiply
    36.71x = 54.68 × 36.64
  4. Step 4: Simplify right side
    36.71x = 2,003.48
  5. Step 5: Solve for x
    x = 2,003.48/36.71
  6. Step 6: Final answer
    x = 54.58

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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.