Home / 80,124.94-120,194.24-20,960.52

Finding the Fourth Proportional to 80,124.94, 120,194.24 and 20,960.52

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Solution

The fourth proportional to 80,124.94, 120,194.24 and 20,960.52 is: 31,442.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,124.94 : 120,194.24 = 20,960.52 : x
  2. Step 2: Convert to fraction form
    80,124.94/120,194.24 = 20,960.52/x
  3. Step 3: Cross multiply
    80,124.94x = 120,194.24 × 20,960.52
  4. Step 4: Simplify right side
    80,124.94x = 2,519,333,771.40
  5. Step 5: Solve for x
    x = 2,519,333,771.40/80,124.94
  6. Step 6: Final answer
    x = 31,442.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.