Home / 80,613.27-120,954.74-30,708.36

Finding the Fourth Proportional to 80,613.27, 120,954.74 and 30,708.36

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Solution

The fourth proportional to 80,613.27, 120,954.74 and 30,708.36 is: 46,075.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,613.27 : 120,954.74 = 30,708.36 : x
  2. Step 2: Convert to fraction form
    80,613.27/120,954.74 = 30,708.36/x
  3. Step 3: Cross multiply
    80,613.27x = 120,954.74 × 30,708.36
  4. Step 4: Simplify right side
    80,613.27x = 3,714,321,546.08
  5. Step 5: Solve for x
    x = 3,714,321,546.08/80,613.27
  6. Step 6: Final answer
    x = 46,075.81

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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.