Home / 86,198.96-129,298.38-27,039.20

Finding the Fourth Proportional to 86,198.96, 129,298.38 and 27,039.20

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Solution

The fourth proportional to 86,198.96, 129,298.38 and 27,039.20 is: 40,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,198.96 : 129,298.38 = 27,039.20 : x
  2. Step 2: Convert to fraction form
    86,198.96/129,298.38 = 27,039.20/x
  3. Step 3: Cross multiply
    86,198.96x = 129,298.38 × 27,039.20
  4. Step 4: Simplify right side
    86,198.96x = 3,496,124,756.50
  5. Step 5: Solve for x
    x = 3,496,124,756.50/86,198.96
  6. Step 6: Final answer
    x = 40,558.78

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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.