Home / 87,891.07-131,809.66-31,724.32

Finding the Fourth Proportional to 87,891.07, 131,809.66 and 31,724.32

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Solution

The fourth proportional to 87,891.07, 131,809.66 and 31,724.32 is: 47,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,891.07 : 131,809.66 = 31,724.32 : x
  2. Step 2: Convert to fraction form
    87,891.07/131,809.66 = 31,724.32/x
  3. Step 3: Cross multiply
    87,891.07x = 131,809.66 × 31,724.32
  4. Step 4: Simplify right side
    87,891.07x = 4,181,571,832.93
  5. Step 5: Solve for x
    x = 4,181,571,832.93/87,891.07
  6. Step 6: Final answer
    x = 47,576.75

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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.