Home / 80,668.12-120,928.38-33,924.28

Finding the Fourth Proportional to 80,668.12, 120,928.38 and 33,924.28

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Solution

The fourth proportional to 80,668.12, 120,928.38 and 33,924.28 is: 50,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,668.12 : 120,928.38 = 33,924.28 : x
  2. Step 2: Convert to fraction form
    80,668.12/120,928.38 = 33,924.28/x
  3. Step 3: Cross multiply
    80,668.12x = 120,928.38 × 33,924.28
  4. Step 4: Simplify right side
    80,668.12x = 4,102,408,223.07
  5. Step 5: Solve for x
    x = 4,102,408,223.07/80,668.12
  6. Step 6: Final answer
    x = 50,855.38

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1.5x scale

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.