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Finding the Fourth Proportional to 75.67, 113.37 and 37.09

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Solution

The fourth proportional to 75.67, 113.37 and 37.09 is: 55.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.67 : 113.37 = 37.09 : x
  2. Step 2: Convert to fraction form
    75.67/113.37 = 37.09/x
  3. Step 3: Cross multiply
    75.67x = 113.37 × 37.09
  4. Step 4: Simplify right side
    75.67x = 4,204.90
  5. Step 5: Solve for x
    x = 4,204.90/75.67
  6. Step 6: Final answer
    x = 55.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.