Home / 87,580.90-120,864.99-49,355.65

Finding the Fourth Proportional to 87,580.90, 120,864.99 and 49,355.65

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Solution

The fourth proportional to 87,580.90, 120,864.99 and 49,355.65 is: 68,112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,580.90 : 120,864.99 = 49,355.65 : x
  2. Step 2: Convert to fraction form
    87,580.90/120,864.99 = 49,355.65/x
  3. Step 3: Cross multiply
    87,580.90x = 120,864.99 × 49,355.65
  4. Step 4: Simplify right side
    87,580.90x = 5,965,370,143.69
  5. Step 5: Solve for x
    x = 5,965,370,143.69/87,580.90
  6. Step 6: Final answer
    x = 68,112.68

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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.