Home / 87,131.24-130,696.86-21,467.24

Finding the Fourth Proportional to 87,131.24, 130,696.86 and 21,467.24

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Solution

The fourth proportional to 87,131.24, 130,696.86 and 21,467.24 is: 32,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,131.24 : 130,696.86 = 21,467.24 : x
  2. Step 2: Convert to fraction form
    87,131.24/130,696.86 = 21,467.24/x
  3. Step 3: Cross multiply
    87,131.24x = 130,696.86 × 21,467.24
  4. Step 4: Simplify right side
    87,131.24x = 2,805,700,860.87
  5. Step 5: Solve for x
    x = 2,805,700,860.87/87,131.24
  6. Step 6: Final answer
    x = 32,200.86

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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.