Home / 47,959.32-71,939.70-18,378.66

Finding the Fourth Proportional to 47,959.32, 71,939.70 and 18,378.66

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Solution

The fourth proportional to 47,959.32, 71,939.70 and 18,378.66 is: 27,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,959.32 : 71,939.70 = 18,378.66 : x
  2. Step 2: Convert to fraction form
    47,959.32/71,939.70 = 18,378.66/x
  3. Step 3: Cross multiply
    47,959.32x = 71,939.70 × 18,378.66
  4. Step 4: Simplify right side
    47,959.32x = 1,322,155,286.80
  5. Step 5: Solve for x
    x = 1,322,155,286.80/47,959.32
  6. Step 6: Final answer
    x = 27,568.27

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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.