Home / 87,599.46-120,745.26-68,445.75

Finding the Fourth Proportional to 87,599.46, 120,745.26 and 68,445.75

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Solution

The fourth proportional to 87,599.46, 120,745.26 and 68,445.75 is: 94,344.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,599.46 : 120,745.26 = 68,445.75 : x
  2. Step 2: Convert to fraction form
    87,599.46/120,745.26 = 68,445.75/x
  3. Step 3: Cross multiply
    87,599.46x = 120,745.26 × 68,445.75
  4. Step 4: Simplify right side
    87,599.46x = 8,264,499,879.65
  5. Step 5: Solve for x
    x = 8,264,499,879.65/87,599.46
  6. Step 6: Final answer
    x = 94,344.19

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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.