Home / 86,166.35-129,170.72-36,249.96

Finding the Fourth Proportional to 86,166.35, 129,170.72 and 36,249.96

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Solution

The fourth proportional to 86,166.35, 129,170.72 and 36,249.96 is: 54,341.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,166.35 : 129,170.72 = 36,249.96 : x
  2. Step 2: Convert to fraction form
    86,166.35/129,170.72 = 36,249.96/x
  3. Step 3: Cross multiply
    86,166.35x = 129,170.72 × 36,249.96
  4. Step 4: Simplify right side
    86,166.35x = 4,682,433,251.92
  5. Step 5: Solve for x
    x = 4,682,433,251.92/86,166.35
  6. Step 6: Final answer
    x = 54,341.79

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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.