Home / 79,382.87-109,549.65-43,576.20

Finding the Fourth Proportional to 79,382.87, 109,549.65 and 43,576.20

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Solution

The fourth proportional to 79,382.87, 109,549.65 and 43,576.20 is: 60,135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,382.87 : 109,549.65 = 43,576.20 : x
  2. Step 2: Convert to fraction form
    79,382.87/109,549.65 = 43,576.20/x
  3. Step 3: Cross multiply
    79,382.87x = 109,549.65 × 43,576.20
  4. Step 4: Simplify right side
    79,382.87x = 4,773,757,458.33
  5. Step 5: Solve for x
    x = 4,773,757,458.33/79,382.87
  6. Step 6: Final answer
    x = 60,135.87

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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.