Home / 36,064.85-54,121.91-12,691.22

Finding the Fourth Proportional to 36,064.85, 54,121.91 and 12,691.22

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Solution

The fourth proportional to 36,064.85, 54,121.91 and 12,691.22 is: 19,045.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,064.85 : 54,121.91 = 12,691.22 : x
  2. Step 2: Convert to fraction form
    36,064.85/54,121.91 = 12,691.22/x
  3. Step 3: Cross multiply
    36,064.85x = 54,121.91 × 12,691.22
  4. Step 4: Simplify right side
    36,064.85x = 686,872,732.56
  5. Step 5: Solve for x
    x = 686,872,732.56/36,064.85
  6. Step 6: Final answer
    x = 19,045.49

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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.