Home / 80,942.93-121,414.40-43,520.63

Finding the Fourth Proportional to 80,942.93, 121,414.40 and 43,520.63

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Solution

The fourth proportional to 80,942.93, 121,414.40 and 43,520.63 is: 65,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,942.93 : 121,414.40 = 43,520.63 : x
  2. Step 2: Convert to fraction form
    80,942.93/121,414.40 = 43,520.63/x
  3. Step 3: Cross multiply
    80,942.93x = 121,414.40 × 43,520.63
  4. Step 4: Simplify right side
    80,942.93x = 5,284,030,354.40
  5. Step 5: Solve for x
    x = 5,284,030,354.40/80,942.93
  6. Step 6: Final answer
    x = 65,280.94

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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.