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Finding the Fourth Proportional to 44.75, 67.42 and 37.31

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Solution

The fourth proportional to 44.75, 67.42 and 37.31 is: 56.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.75 : 67.42 = 37.31 : x
  2. Step 2: Convert to fraction form
    44.75/67.42 = 37.31/x
  3. Step 3: Cross multiply
    44.75x = 67.42 × 37.31
  4. Step 4: Simplify right side
    44.75x = 2,515.01
  5. Step 5: Solve for x
    x = 2,515.01/44.75
  6. Step 6: Final answer
    x = 56.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.