Home / 80,554.62-120,729.87-45,514.02

Finding the Fourth Proportional to 80,554.62, 120,729.87 and 45,514.02

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Solution

The fourth proportional to 80,554.62, 120,729.87 and 45,514.02 is: 68,213.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,554.62 : 120,729.87 = 45,514.02 : x
  2. Step 2: Convert to fraction form
    80,554.62/120,729.87 = 45,514.02/x
  3. Step 3: Cross multiply
    80,554.62x = 120,729.87 × 45,514.02
  4. Step 4: Simplify right side
    80,554.62x = 5,494,901,717.78
  5. Step 5: Solve for x
    x = 5,494,901,717.78/80,554.62
  6. Step 6: Final answer
    x = 68,213.37

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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.