Home / 87,202.85-120,257.26-57,014.04

Finding the Fourth Proportional to 87,202.85, 120,257.26 and 57,014.04

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Solution

The fourth proportional to 87,202.85, 120,257.26 and 57,014.04 is: 78,625.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,202.85 : 120,257.26 = 57,014.04 : x
  2. Step 2: Convert to fraction form
    87,202.85/120,257.26 = 57,014.04/x
  3. Step 3: Cross multiply
    87,202.85x = 120,257.26 × 57,014.04
  4. Step 4: Simplify right side
    87,202.85x = 6,856,352,540.36
  5. Step 5: Solve for x
    x = 6,856,352,540.36/87,202.85
  6. Step 6: Final answer
    x = 78,625.33

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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.