Home / 80,145.20-120,228.60-27,570.80

Finding the Fourth Proportional to 80,145.20, 120,228.60 and 27,570.80

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Solution

The fourth proportional to 80,145.20, 120,228.60 and 27,570.80 is: 41,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,145.20 : 120,228.60 = 27,570.80 : x
  2. Step 2: Convert to fraction form
    80,145.20/120,228.60 = 27,570.80/x
  3. Step 3: Cross multiply
    80,145.20x = 120,228.60 × 27,570.80
  4. Step 4: Simplify right side
    80,145.20x = 3,314,798,684.88
  5. Step 5: Solve for x
    x = 3,314,798,684.88/80,145.20
  6. Step 6: Final answer
    x = 41,359.92

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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.