Home / 87,803.43-121,168.74-47,517.20

Finding the Fourth Proportional to 87,803.43, 121,168.74 and 47,517.20

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Solution

The fourth proportional to 87,803.43, 121,168.74 and 47,517.20 is: 65,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803.43 : 121,168.74 = 47,517.20 : x
  2. Step 2: Convert to fraction form
    87,803.43/121,168.74 = 47,517.20/x
  3. Step 3: Cross multiply
    87,803.43x = 121,168.74 × 47,517.20
  4. Step 4: Simplify right side
    87,803.43x = 5,757,598,408.90
  5. Step 5: Solve for x
    x = 5,757,598,408.90/87,803.43
  6. Step 6: Final answer
    x = 65,573.73

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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.