Home / 87,581.53-120,855.63-49,339

Finding the Fourth Proportional to 87,581.53, 120,855.63 and 49,339

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Solution

The fourth proportional to 87,581.53, 120,855.63 and 49,339 is: 68,083.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,581.53 : 120,855.63 = 49,339 : x
  2. Step 2: Convert to fraction form
    87,581.53/120,855.63 = 49,339/x
  3. Step 3: Cross multiply
    87,581.53x = 120,855.63 × 49,339
  4. Step 4: Simplify right side
    87,581.53x = 5,962,895,928.57
  5. Step 5: Solve for x
    x = 5,962,895,928.57/87,581.53
  6. Step 6: Final answer
    x = 68,083.94

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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.