Home / 81,072.24-121,743.22-50,104.32

Finding the Fourth Proportional to 81,072.24, 121,743.22 and 50,104.32

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Solution

The fourth proportional to 81,072.24, 121,743.22 and 50,104.32 is: 75,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,072.24 : 121,743.22 = 50,104.32 : x
  2. Step 2: Convert to fraction form
    81,072.24/121,743.22 = 50,104.32/x
  3. Step 3: Cross multiply
    81,072.24x = 121,743.22 × 50,104.32
  4. Step 4: Simplify right side
    81,072.24x = 6,099,861,252.71
  5. Step 5: Solve for x
    x = 6,099,861,252.71/81,072.24
  6. Step 6: Final answer
    x = 75,239.83

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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.