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Finding the Fourth Proportional to 37.73, 56.21 and 36.09

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Solution

The fourth proportional to 37.73, 56.21 and 36.09 is: 53.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.73 : 56.21 = 36.09 : x
  2. Step 2: Convert to fraction form
    37.73/56.21 = 36.09/x
  3. Step 3: Cross multiply
    37.73x = 56.21 × 36.09
  4. Step 4: Simplify right side
    37.73x = 2,028.71
  5. Step 5: Solve for x
    x = 2,028.71/37.73
  6. Step 6: Final answer
    x = 53.78

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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.