Home / 80,195.24-120,296.82-21,031.04

Finding the Fourth Proportional to 80,195.24, 120,296.82 and 21,031.04

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Solution

The fourth proportional to 80,195.24, 120,296.82 and 21,031.04 is: 31,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,195.24 : 120,296.82 = 21,031.04 : x
  2. Step 2: Convert to fraction form
    80,195.24/120,296.82 = 21,031.04/x
  3. Step 3: Cross multiply
    80,195.24x = 120,296.82 × 21,031.04
  4. Step 4: Simplify right side
    80,195.24x = 2,529,967,233.29
  5. Step 5: Solve for x
    x = 2,529,967,233.29/80,195.24
  6. Step 6: Final answer
    x = 31,547.60

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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.