Home / 86,863.83-130,198.92-39,407.75

Finding the Fourth Proportional to 86,863.83, 130,198.92 and 39,407.75

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Solution

The fourth proportional to 86,863.83, 130,198.92 and 39,407.75 is: 59,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,863.83 : 130,198.92 = 39,407.75 : x
  2. Step 2: Convert to fraction form
    86,863.83/130,198.92 = 39,407.75/x
  3. Step 3: Cross multiply
    86,863.83x = 130,198.92 × 39,407.75
  4. Step 4: Simplify right side
    86,863.83x = 5,130,846,289.94
  5. Step 5: Solve for x
    x = 5,130,846,289.94/86,863.83
  6. Step 6: Final answer
    x = 59,067.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.