Home / 86,713.10-130,067.82-39,965.96

Finding the Fourth Proportional to 86,713.10, 130,067.82 and 39,965.96

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Solution

The fourth proportional to 86,713.10, 130,067.82 and 39,965.96 is: 59,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,713.10 : 130,067.82 = 39,965.96 : x
  2. Step 2: Convert to fraction form
    86,713.10/130,067.82 = 39,965.96/x
  3. Step 3: Cross multiply
    86,713.10x = 130,067.82 × 39,965.96
  4. Step 4: Simplify right side
    86,713.10x = 5,198,285,291.41
  5. Step 5: Solve for x
    x = 5,198,285,291.41/86,713.10
  6. Step 6: Final answer
    x = 59,948.10

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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.