Home / 80,793.15-121,208.94-40,713.64

Finding the Fourth Proportional to 80,793.15, 121,208.94 and 40,713.64

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Solution

The fourth proportional to 80,793.15, 121,208.94 and 40,713.64 is: 61,080.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,793.15 : 121,208.94 = 40,713.64 : x
  2. Step 2: Convert to fraction form
    80,793.15/121,208.94 = 40,713.64/x
  3. Step 3: Cross multiply
    80,793.15x = 121,208.94 × 40,713.64
  4. Step 4: Simplify right side
    80,793.15x = 4,934,857,147.94
  5. Step 5: Solve for x
    x = 4,934,857,147.94/80,793.15
  6. Step 6: Final answer
    x = 61,080.14

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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.