Home / 80,212.29-120,436.72-44,742.91

Finding the Fourth Proportional to 80,212.29, 120,436.72 and 44,742.91

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Solution

The fourth proportional to 80,212.29, 120,436.72 and 44,742.91 is: 67,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212.29 : 120,436.72 = 44,742.91 : x
  2. Step 2: Convert to fraction form
    80,212.29/120,436.72 = 44,742.91/x
  3. Step 3: Cross multiply
    80,212.29x = 120,436.72 × 44,742.91
  4. Step 4: Simplify right side
    80,212.29x = 5,388,689,323.66
  5. Step 5: Solve for x
    x = 5,388,689,323.66/80,212.29
  6. Step 6: Final answer
    x = 67,180.35

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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.