Home / 87,593.20-120,878.75-49,867.45

Finding the Fourth Proportional to 87,593.20, 120,878.75 and 49,867.45

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Solution

The fourth proportional to 87,593.20, 120,878.75 and 49,867.45 is: 68,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,593.20 : 120,878.75 = 49,867.45 : x
  2. Step 2: Convert to fraction form
    87,593.20/120,878.75 = 49,867.45/x
  3. Step 3: Cross multiply
    87,593.20x = 120,878.75 × 49,867.45
  4. Step 4: Simplify right side
    87,593.20x = 6,027,915,021.69
  5. Step 5: Solve for x
    x = 6,027,915,021.69/87,593.20
  6. Step 6: Final answer
    x = 68,817.16

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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.