Home / 86,217.18-129,325.64-27,057.48

Finding the Fourth Proportional to 86,217.18, 129,325.64 and 27,057.48

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Solution

The fourth proportional to 86,217.18, 129,325.64 and 27,057.48 is: 40,586.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,217.18 : 129,325.64 = 27,057.48 : x
  2. Step 2: Convert to fraction form
    86,217.18/129,325.64 = 27,057.48/x
  3. Step 3: Cross multiply
    86,217.18x = 129,325.64 × 27,057.48
  4. Step 4: Simplify right side
    86,217.18x = 3,499,225,917.79
  5. Step 5: Solve for x
    x = 3,499,225,917.79/86,217.18
  6. Step 6: Final answer
    x = 40,586.18

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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.