Home / 87,680.43-131,533.38-27,688.59

Finding the Fourth Proportional to 87,680.43, 131,533.38 and 27,688.59

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Solution

The fourth proportional to 87,680.43, 131,533.38 and 27,688.59 is: 41,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.43 : 131,533.38 = 27,688.59 : x
  2. Step 2: Convert to fraction form
    87,680.43/131,533.38 = 27,688.59/x
  3. Step 3: Cross multiply
    87,680.43x = 131,533.38 × 27,688.59
  4. Step 4: Simplify right side
    87,680.43x = 3,641,973,830.13
  5. Step 5: Solve for x
    x = 3,641,973,830.13/87,680.43
  6. Step 6: Final answer
    x = 41,536.91

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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.