Home / 80,486.87-111,049.37-50,302.85

Finding the Fourth Proportional to 80,486.87, 111,049.37 and 50,302.85

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Solution

The fourth proportional to 80,486.87, 111,049.37 and 50,302.85 is: 69,403.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,486.87 : 111,049.37 = 50,302.85 : x
  2. Step 2: Convert to fraction form
    80,486.87/111,049.37 = 50,302.85/x
  3. Step 3: Cross multiply
    80,486.87x = 111,049.37 × 50,302.85
  4. Step 4: Simplify right side
    80,486.87x = 5,586,099,827.81
  5. Step 5: Solve for x
    x = 5,586,099,827.81/80,486.87
  6. Step 6: Final answer
    x = 69,403.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.