Home / 87,025.65-120,087.25-49,299.90

Finding the Fourth Proportional to 87,025.65, 120,087.25 and 49,299.90

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Solution

The fourth proportional to 87,025.65, 120,087.25 and 49,299.90 is: 68,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,025.65 : 120,087.25 = 49,299.90 : x
  2. Step 2: Convert to fraction form
    87,025.65/120,087.25 = 49,299.90/x
  3. Step 3: Cross multiply
    87,025.65x = 120,087.25 × 49,299.90
  4. Step 4: Simplify right side
    87,025.65x = 5,920,289,416.28
  5. Step 5: Solve for x
    x = 5,920,289,416.28/87,025.65
  6. Step 6: Final answer
    x = 68,029.25

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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.