Home / 79,382.98-109,557.21-50,729.05

Finding the Fourth Proportional to 79,382.98, 109,557.21 and 50,729.05

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Solution

The fourth proportional to 79,382.98, 109,557.21 and 50,729.05 is: 70,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,382.98 : 109,557.21 = 50,729.05 : x
  2. Step 2: Convert to fraction form
    79,382.98/109,557.21 = 50,729.05/x
  3. Step 3: Cross multiply
    79,382.98x = 109,557.21 × 50,729.05
  4. Step 4: Simplify right side
    79,382.98x = 5,557,733,183.95
  5. Step 5: Solve for x
    x = 5,557,733,183.95/79,382.98
  6. Step 6: Final answer
    x = 70,011.65

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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.