Home / 86,718.20-129,998.42-33,376.15

Finding the Fourth Proportional to 86,718.20, 129,998.42 and 33,376.15

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Solution

The fourth proportional to 86,718.20, 129,998.42 and 33,376.15 is: 50,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,718.20 : 129,998.42 = 33,376.15 : x
  2. Step 2: Convert to fraction form
    86,718.20/129,998.42 = 33,376.15/x
  3. Step 3: Cross multiply
    86,718.20x = 129,998.42 × 33,376.15
  4. Step 4: Simplify right side
    86,718.20x = 4,338,846,886.46
  5. Step 5: Solve for x
    x = 4,338,846,886.46/86,718.20
  6. Step 6: Final answer
    x = 50,033.87

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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.