Home / 80,212.12-120,436.45-44,742.74

Finding the Fourth Proportional to 80,212.12, 120,436.45 and 44,742.74

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Solution

The fourth proportional to 80,212.12, 120,436.45 and 44,742.74 is: 67,180.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212.12 : 120,436.45 = 44,742.74 : x
  2. Step 2: Convert to fraction form
    80,212.12/120,436.45 = 44,742.74/x
  3. Step 3: Cross multiply
    80,212.12x = 120,436.45 × 44,742.74
  4. Step 4: Simplify right side
    80,212.12x = 5,388,656,054.83
  5. Step 5: Solve for x
    x = 5,388,656,054.83/80,212.12
  6. Step 6: Final answer
    x = 67,180.07

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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.