Home / 87,581.15-120,855.13-49,339.02

Finding the Fourth Proportional to 87,581.15, 120,855.13 and 49,339.02

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Solution

The fourth proportional to 87,581.15, 120,855.13 and 49,339.02 is: 68,083.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,581.15 : 120,855.13 = 49,339.02 : x
  2. Step 2: Convert to fraction form
    87,581.15/120,855.13 = 49,339.02/x
  3. Step 3: Cross multiply
    87,581.15x = 120,855.13 × 49,339.02
  4. Step 4: Simplify right side
    87,581.15x = 5,962,873,676.17
  5. Step 5: Solve for x
    x = 5,962,873,676.17/87,581.15
  6. Step 6: Final answer
    x = 68,083.98

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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.