Home / 87,731.84-120,960.22-73,216.92

Finding the Fourth Proportional to 87,731.84, 120,960.22 and 73,216.92

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Solution

The fourth proportional to 87,731.84, 120,960.22 and 73,216.92 is: 100,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,731.84 : 120,960.22 = 73,216.92 : x
  2. Step 2: Convert to fraction form
    87,731.84/120,960.22 = 73,216.92/x
  3. Step 3: Cross multiply
    87,731.84x = 120,960.22 × 73,216.92
  4. Step 4: Simplify right side
    87,731.84x = 8,856,334,750.92
  5. Step 5: Solve for x
    x = 8,856,334,750.92/87,731.84
  6. Step 6: Final answer
    x = 100,947.78

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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.