Home / 80,556.04-120,832.78-19,766.96

Finding the Fourth Proportional to 80,556.04, 120,832.78 and 19,766.96

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Solution

The fourth proportional to 80,556.04, 120,832.78 and 19,766.96 is: 29,650.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,556.04 : 120,832.78 = 19,766.96 : x
  2. Step 2: Convert to fraction form
    80,556.04/120,832.78 = 19,766.96/x
  3. Step 3: Cross multiply
    80,556.04x = 120,832.78 × 19,766.96
  4. Step 4: Simplify right side
    80,556.04x = 2,388,496,728.95
  5. Step 5: Solve for x
    x = 2,388,496,728.95/80,556.04
  6. Step 6: Final answer
    x = 29,650.13

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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.