Home / 86,118.93-129,180.83-23,789.43

Finding the Fourth Proportional to 86,118.93, 129,180.83 and 23,789.43

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Solution

The fourth proportional to 86,118.93, 129,180.83 and 23,789.43 is: 35,684.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,118.93 : 129,180.83 = 23,789.43 : x
  2. Step 2: Convert to fraction form
    86,118.93/129,180.83 = 23,789.43/x
  3. Step 3: Cross multiply
    86,118.93x = 129,180.83 × 23,789.43
  4. Step 4: Simplify right side
    86,118.93x = 3,073,138,193.68
  5. Step 5: Solve for x
    x = 3,073,138,193.68/86,118.93
  6. Step 6: Final answer
    x = 35,684.82

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1.5x scale

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.