Home / 87,625.80-120,924.36-49,378.01

Finding the Fourth Proportional to 87,625.80, 120,924.36 and 49,378.01

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Solution

The fourth proportional to 87,625.80, 120,924.36 and 49,378.01 is: 68,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,625.80 : 120,924.36 = 49,378.01 : x
  2. Step 2: Convert to fraction form
    87,625.80/120,924.36 = 49,378.01/x
  3. Step 3: Cross multiply
    87,625.80x = 120,924.36 × 49,378.01
  4. Step 4: Simplify right side
    87,625.80x = 5,971,004,257.32
  5. Step 5: Solve for x
    x = 5,971,004,257.32/87,625.80
  6. Step 6: Final answer
    x = 68,142.08

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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.