Home / 87,940.08-121,198.68-64,028.88

Finding the Fourth Proportional to 87,940.08, 121,198.68 and 64,028.88

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Solution

The fourth proportional to 87,940.08, 121,198.68 and 64,028.88 is: 88,244.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,940.08 : 121,198.68 = 64,028.88 : x
  2. Step 2: Convert to fraction form
    87,940.08/121,198.68 = 64,028.88/x
  3. Step 3: Cross multiply
    87,940.08x = 121,198.68 × 64,028.88
  4. Step 4: Simplify right side
    87,940.08x = 7,760,215,737.88
  5. Step 5: Solve for x
    x = 7,760,215,737.88/87,940.08
  6. Step 6: Final answer
    x = 88,244.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.