Home / 45,072.32-67,517.84-21,022.60

Finding the Fourth Proportional to 45,072.32, 67,517.84 and 21,022.60

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Solution

The fourth proportional to 45,072.32, 67,517.84 and 21,022.60 is: 31,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,072.32 : 67,517.84 = 21,022.60 : x
  2. Step 2: Convert to fraction form
    45,072.32/67,517.84 = 21,022.60/x
  3. Step 3: Cross multiply
    45,072.32x = 67,517.84 × 21,022.60
  4. Step 4: Simplify right side
    45,072.32x = 1,419,400,543.18
  5. Step 5: Solve for x
    x = 1,419,400,543.18/45,072.32
  6. Step 6: Final answer
    x = 31,491.62

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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.