Home / 87,840.44-131,891.87-86,528.24

Finding the Fourth Proportional to 87,840.44, 131,891.87 and 86,528.24

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Solution

The fourth proportional to 87,840.44, 131,891.87 and 86,528.24 is: 129,921.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840.44 : 131,891.87 = 86,528.24 : x
  2. Step 2: Convert to fraction form
    87,840.44/131,891.87 = 86,528.24/x
  3. Step 3: Cross multiply
    87,840.44x = 131,891.87 × 86,528.24
  4. Step 4: Simplify right side
    87,840.44x = 11,412,371,381.41
  5. Step 5: Solve for x
    x = 11,412,371,381.41/87,840.44
  6. Step 6: Final answer
    x = 129,921.61

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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.