Home / 86,245.97-129,370.07-27,081.61

Finding the Fourth Proportional to 86,245.97, 129,370.07 and 27,081.61

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Solution

The fourth proportional to 86,245.97, 129,370.07 and 27,081.61 is: 40,622.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,245.97 : 129,370.07 = 27,081.61 : x
  2. Step 2: Convert to fraction form
    86,245.97/129,370.07 = 27,081.61/x
  3. Step 3: Cross multiply
    86,245.97x = 129,370.07 × 27,081.61
  4. Step 4: Simplify right side
    86,245.97x = 3,503,549,525.69
  5. Step 5: Solve for x
    x = 3,503,549,525.69/86,245.97
  6. Step 6: Final answer
    x = 40,622.76

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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.