Home / 87,580.15-120,853.75-49,338.02

Finding the Fourth Proportional to 87,580.15, 120,853.75 and 49,338.02

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Solution

The fourth proportional to 87,580.15, 120,853.75 and 49,338.02 is: 68,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,580.15 : 120,853.75 = 49,338.02 : x
  2. Step 2: Convert to fraction form
    87,580.15/120,853.75 = 49,338.02/x
  3. Step 3: Cross multiply
    87,580.15x = 120,853.75 × 49,338.02
  4. Step 4: Simplify right side
    87,580.15x = 5,962,684,734.58
  5. Step 5: Solve for x
    x = 5,962,684,734.58/87,580.15
  6. Step 6: Final answer
    x = 68,082.60

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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.