Home / 80,212.30-120,436.72-44,742.92

Finding the Fourth Proportional to 80,212.30, 120,436.72 and 44,742.92

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Solution

The fourth proportional to 80,212.30, 120,436.72 and 44,742.92 is: 67,180.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212.30 : 120,436.72 = 44,742.92 : x
  2. Step 2: Convert to fraction form
    80,212.30/120,436.72 = 44,742.92/x
  3. Step 3: Cross multiply
    80,212.30x = 120,436.72 × 44,742.92
  4. Step 4: Simplify right side
    80,212.30x = 5,388,689,813.98
  5. Step 5: Solve for x
    x = 5,388,689,813.98/80,212.30
  6. Step 6: Final answer
    x = 67,180.34

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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.