Home / 83,856.20-115,719.76-48,067.32

Finding the Fourth Proportional to 83,856.20, 115,719.76 and 48,067.32

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Solution

The fourth proportional to 83,856.20, 115,719.76 and 48,067.32 is: 66,331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,856.20 : 115,719.76 = 48,067.32 : x
  2. Step 2: Convert to fraction form
    83,856.20/115,719.76 = 48,067.32/x
  3. Step 3: Cross multiply
    83,856.20x = 115,719.76 × 48,067.32
  4. Step 4: Simplify right side
    83,856.20x = 5,562,338,734.24
  5. Step 5: Solve for x
    x = 5,562,338,734.24/83,856.20
  6. Step 6: Final answer
    x = 66,331.87

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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.