Home / 87,632.62-120,929.54-49,400.12

Finding the Fourth Proportional to 87,632.62, 120,929.54 and 49,400.12

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Solution

The fourth proportional to 87,632.62, 120,929.54 and 49,400.12 is: 68,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,632.62 : 120,929.54 = 49,400.12 : x
  2. Step 2: Convert to fraction form
    87,632.62/120,929.54 = 49,400.12/x
  3. Step 3: Cross multiply
    87,632.62x = 120,929.54 × 49,400.12
  4. Step 4: Simplify right side
    87,632.62x = 5,973,933,842.87
  5. Step 5: Solve for x
    x = 5,973,933,842.87/87,632.62
  6. Step 6: Final answer
    x = 68,170.21

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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.