Home / 80,203.07-120,236.95-50,555.56

Finding the Fourth Proportional to 80,203.07, 120,236.95 and 50,555.56

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Solution

The fourth proportional to 80,203.07, 120,236.95 and 50,555.56 is: 75,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,203.07 : 120,236.95 = 50,555.56 : x
  2. Step 2: Convert to fraction form
    80,203.07/120,236.95 = 50,555.56/x
  3. Step 3: Cross multiply
    80,203.07x = 120,236.95 × 50,555.56
  4. Step 4: Simplify right side
    80,203.07x = 6,078,646,339.94
  5. Step 5: Solve for x
    x = 6,078,646,339.94/80,203.07
  6. Step 6: Final answer
    x = 75,790.69

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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.