Home / 36,122.56-54,180.16-12,747.52

Finding the Fourth Proportional to 36,122.56, 54,180.16 and 12,747.52

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Solution

The fourth proportional to 36,122.56, 54,180.16 and 12,747.52 is: 19,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,122.56 : 54,180.16 = 12,747.52 : x
  2. Step 2: Convert to fraction form
    36,122.56/54,180.16 = 12,747.52/x
  3. Step 3: Cross multiply
    36,122.56x = 54,180.16 × 12,747.52
  4. Step 4: Simplify right side
    36,122.56x = 690,662,673.20
  5. Step 5: Solve for x
    x = 690,662,673.20/36,122.56
  6. Step 6: Final answer
    x = 19,119.98

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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.