Home / 87,594-120,879.86-49,868.25

Finding the Fourth Proportional to 87,594, 120,879.86 and 49,868.25

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Solution

The fourth proportional to 87,594, 120,879.86 and 49,868.25 is: 68,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,594 : 120,879.86 = 49,868.25 : x
  2. Step 2: Convert to fraction form
    87,594/120,879.86 = 49,868.25/x
  3. Step 3: Cross multiply
    87,594x = 120,879.86 × 49,868.25
  4. Step 4: Simplify right side
    87,594x = 6,028,067,078.45
  5. Step 5: Solve for x
    x = 6,028,067,078.45/87,594
  6. Step 6: Final answer
    x = 68,818.26

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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.