Home / 87,976.62-131,983.61-28,807.92

Finding the Fourth Proportional to 87,976.62, 131,983.61 and 28,807.92

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Solution

The fourth proportional to 87,976.62, 131,983.61 and 28,807.92 is: 43,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,976.62 : 131,983.61 = 28,807.92 : x
  2. Step 2: Convert to fraction form
    87,976.62/131,983.61 = 28,807.92/x
  3. Step 3: Cross multiply
    87,976.62x = 131,983.61 × 28,807.92
  4. Step 4: Simplify right side
    87,976.62x = 3,802,173,134.15
  5. Step 5: Solve for x
    x = 3,802,173,134.15/87,976.62
  6. Step 6: Final answer
    x = 43,218.00

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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.