Home / 87,021.06-119,920.92-61,826.82

Finding the Fourth Proportional to 87,021.06, 119,920.92 and 61,826.82

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Solution

The fourth proportional to 87,021.06, 119,920.92 and 61,826.82 is: 85,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,021.06 : 119,920.92 = 61,826.82 : x
  2. Step 2: Convert to fraction form
    87,021.06/119,920.92 = 61,826.82/x
  3. Step 3: Cross multiply
    87,021.06x = 119,920.92 × 61,826.82
  4. Step 4: Simplify right side
    87,021.06x = 7,414,329,135.07
  5. Step 5: Solve for x
    x = 7,414,329,135.07/87,021.06
  6. Step 6: Final answer
    x = 85,201.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.