Home / 87,620.66-120,916.38-47,334.41

Finding the Fourth Proportional to 87,620.66, 120,916.38 and 47,334.41

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Solution

The fourth proportional to 87,620.66, 120,916.38 and 47,334.41 is: 65,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,620.66 : 120,916.38 = 47,334.41 : x
  2. Step 2: Convert to fraction form
    87,620.66/120,916.38 = 47,334.41/x
  3. Step 3: Cross multiply
    87,620.66x = 120,916.38 × 47,334.41
  4. Step 4: Simplify right side
    87,620.66x = 5,723,505,506.64
  5. Step 5: Solve for x
    x = 5,723,505,506.64/87,620.66
  6. Step 6: Final answer
    x = 65,321.42

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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.