Home / 45,086.94-67,636.58-18,785.54

Finding the Fourth Proportional to 45,086.94, 67,636.58 and 18,785.54

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Solution

The fourth proportional to 45,086.94, 67,636.58 and 18,785.54 is: 28,180.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,086.94 : 67,636.58 = 18,785.54 : x
  2. Step 2: Convert to fraction form
    45,086.94/67,636.58 = 18,785.54/x
  3. Step 3: Cross multiply
    45,086.94x = 67,636.58 × 18,785.54
  4. Step 4: Simplify right side
    45,086.94x = 1,270,589,754.22
  5. Step 5: Solve for x
    x = 1,270,589,754.22/45,086.94
  6. Step 6: Final answer
    x = 28,180.88

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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.