Home / 55,252.43-82,879.20-30,278.87

Finding the Fourth Proportional to 55,252.43, 82,879.20 and 30,278.87

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Solution

The fourth proportional to 55,252.43, 82,879.20 and 30,278.87 is: 45,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,252.43 : 82,879.20 = 30,278.87 : x
  2. Step 2: Convert to fraction form
    55,252.43/82,879.20 = 30,278.87/x
  3. Step 3: Cross multiply
    55,252.43x = 82,879.20 × 30,278.87
  4. Step 4: Simplify right side
    55,252.43x = 2,509,488,108.11
  5. Step 5: Solve for x
    x = 2,509,488,108.11/55,252.43
  6. Step 6: Final answer
    x = 45,418.61

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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.