Home / 80,115.84-120,180.24-27,525.36

Finding the Fourth Proportional to 80,115.84, 120,180.24 and 27,525.36

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Solution

The fourth proportional to 80,115.84, 120,180.24 and 27,525.36 is: 41,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,115.84 : 120,180.24 = 27,525.36 : x
  2. Step 2: Convert to fraction form
    80,115.84/120,180.24 = 27,525.36/x
  3. Step 3: Cross multiply
    80,115.84x = 120,180.24 × 27,525.36
  4. Step 4: Simplify right side
    80,115.84x = 3,308,004,370.89
  5. Step 5: Solve for x
    x = 3,308,004,370.89/80,115.84
  6. Step 6: Final answer
    x = 41,290.27

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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.