Home / 87,964.26-131,918.96-28,786.74

Finding the Fourth Proportional to 87,964.26, 131,918.96 and 28,786.74

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Solution

The fourth proportional to 87,964.26, 131,918.96 and 28,786.74 is: 43,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,964.26 : 131,918.96 = 28,786.74 : x
  2. Step 2: Convert to fraction form
    87,964.26/131,918.96 = 28,786.74/x
  3. Step 3: Cross multiply
    87,964.26x = 131,918.96 × 28,786.74
  4. Step 4: Simplify right side
    87,964.26x = 3,797,516,802.59
  5. Step 5: Solve for x
    x = 3,797,516,802.59/87,964.26
  6. Step 6: Final answer
    x = 43,171.13

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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.