Home / 87,813.88-121,100.91-58,293.41

Finding the Fourth Proportional to 87,813.88, 121,100.91 and 58,293.41

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Solution

The fourth proportional to 87,813.88, 121,100.91 and 58,293.41 is: 80,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,813.88 : 121,100.91 = 58,293.41 : x
  2. Step 2: Convert to fraction form
    87,813.88/121,100.91 = 58,293.41/x
  3. Step 3: Cross multiply
    87,813.88x = 121,100.91 × 58,293.41
  4. Step 4: Simplify right side
    87,813.88x = 7,059,384,930.72
  5. Step 5: Solve for x
    x = 7,059,384,930.72/87,813.88
  6. Step 6: Final answer
    x = 80,390.30

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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.