Home / 87,502.22-120,752.43-49,778.54

Finding the Fourth Proportional to 87,502.22, 120,752.43 and 49,778.54

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Solution

The fourth proportional to 87,502.22, 120,752.43 and 49,778.54 is: 68,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,502.22 : 120,752.43 = 49,778.54 : x
  2. Step 2: Convert to fraction form
    87,502.22/120,752.43 = 49,778.54/x
  3. Step 3: Cross multiply
    87,502.22x = 120,752.43 × 49,778.54
  4. Step 4: Simplify right side
    87,502.22x = 6,010,879,666.85
  5. Step 5: Solve for x
    x = 6,010,879,666.85/87,502.22
  6. Step 6: Final answer
    x = 68,694.02

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1.5x scale

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.