Home / 57,680.13-86,519.39-18,240.15

Finding the Fourth Proportional to 57,680.13, 86,519.39 and 18,240.15

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Solution

The fourth proportional to 57,680.13, 86,519.39 and 18,240.15 is: 27,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,680.13 : 86,519.39 = 18,240.15 : x
  2. Step 2: Convert to fraction form
    57,680.13/86,519.39 = 18,240.15/x
  3. Step 3: Cross multiply
    57,680.13x = 86,519.39 × 18,240.15
  4. Step 4: Simplify right side
    57,680.13x = 1,578,126,560.31
  5. Step 5: Solve for x
    x = 1,578,126,560.31/57,680.13
  6. Step 6: Final answer
    x = 27,359.97

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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.