Home / 220,983.24-331,414.32-61,020.90

Finding the Fourth Proportional to 220,983.24, 331,414.32 and 61,020.90

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Solution

The fourth proportional to 220,983.24, 331,414.32 and 61,020.90 is: 91,514.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,983.24 : 331,414.32 = 61,020.90 : x
  2. Step 2: Convert to fraction form
    220,983.24/331,414.32 = 61,020.90/x
  3. Step 3: Cross multiply
    220,983.24x = 331,414.32 × 61,020.90
  4. Step 4: Simplify right side
    220,983.24x = 20,223,200,079.29
  5. Step 5: Solve for x
    x = 20,223,200,079.29/220,983.24
  6. Step 6: Final answer
    x = 91,514.63

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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.