Home / 87,571.13-120,848.29-49,845.38

Finding the Fourth Proportional to 87,571.13, 120,848.29 and 49,845.38

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Solution

The fourth proportional to 87,571.13, 120,848.29 and 49,845.38 is: 68,786.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,571.13 : 120,848.29 = 49,845.38 : x
  2. Step 2: Convert to fraction form
    87,571.13/120,848.29 = 49,845.38/x
  3. Step 3: Cross multiply
    87,571.13x = 120,848.29 × 49,845.38
  4. Step 4: Simplify right side
    87,571.13x = 6,023,728,208.55
  5. Step 5: Solve for x
    x = 6,023,728,208.55/87,571.13
  6. Step 6: Final answer
    x = 68,786.69

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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.