Home / 80,198.45-120,314.60-30,277.44

Finding the Fourth Proportional to 80,198.45, 120,314.60 and 30,277.44

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Solution

The fourth proportional to 80,198.45, 120,314.60 and 30,277.44 is: 45,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,198.45 : 120,314.60 = 30,277.44 : x
  2. Step 2: Convert to fraction form
    80,198.45/120,314.60 = 30,277.44/x
  3. Step 3: Cross multiply
    80,198.45x = 120,314.60 × 30,277.44
  4. Step 4: Simplify right side
    80,198.45x = 3,642,817,931.24
  5. Step 5: Solve for x
    x = 3,642,817,931.24/80,198.45
  6. Step 6: Final answer
    x = 45,422.55

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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.