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Finding the Fourth Proportional to 37.21, 55.34 and 36.08

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Solution

The fourth proportional to 37.21, 55.34 and 36.08 is: 53.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.21 : 55.34 = 36.08 : x
  2. Step 2: Convert to fraction form
    37.21/55.34 = 36.08/x
  3. Step 3: Cross multiply
    37.21x = 55.34 × 36.08
  4. Step 4: Simplify right side
    37.21x = 1,996.67
  5. Step 5: Solve for x
    x = 1,996.67/37.21
  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.