Home / 81,909.43-122,760.26-36,882.74

Finding the Fourth Proportional to 81,909.43, 122,760.26 and 36,882.74

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Solution

The fourth proportional to 81,909.43, 122,760.26 and 36,882.74 is: 55,277.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,909.43 : 122,760.26 = 36,882.74 : x
  2. Step 2: Convert to fraction form
    81,909.43/122,760.26 = 36,882.74/x
  3. Step 3: Cross multiply
    81,909.43x = 122,760.26 × 36,882.74
  4. Step 4: Simplify right side
    81,909.43x = 4,527,735,012.71
  5. Step 5: Solve for x
    x = 4,527,735,012.71/81,909.43
  6. Step 6: Final answer
    x = 55,277.34

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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.