Home / 80,706.43-121,054.96-30,791.56

Finding the Fourth Proportional to 80,706.43, 121,054.96 and 30,791.56

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Solution

The fourth proportional to 80,706.43, 121,054.96 and 30,791.56 is: 46,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,706.43 : 121,054.96 = 30,791.56 : x
  2. Step 2: Convert to fraction form
    80,706.43/121,054.96 = 30,791.56/x
  3. Step 3: Cross multiply
    80,706.43x = 121,054.96 × 30,791.56
  4. Step 4: Simplify right side
    80,706.43x = 3,727,470,853.77
  5. Step 5: Solve for x
    x = 3,727,470,853.77/80,706.43
  6. Step 6: Final answer
    x = 46,185.55

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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.