Home / 45,115.44-67,635.09-28,438.70

Finding the Fourth Proportional to 45,115.44, 67,635.09 and 28,438.70

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Solution

The fourth proportional to 45,115.44, 67,635.09 and 28,438.70 is: 42,634.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,115.44 : 67,635.09 = 28,438.70 : x
  2. Step 2: Convert to fraction form
    45,115.44/67,635.09 = 28,438.70/x
  3. Step 3: Cross multiply
    45,115.44x = 67,635.09 × 28,438.70
  4. Step 4: Simplify right side
    45,115.44x = 1,923,454,033.98
  5. Step 5: Solve for x
    x = 1,923,454,033.98/45,115.44
  6. Step 6: Final answer
    x = 42,634.06

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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.