Home / 45,033.80-67,589.10-20,112.20

Finding the Fourth Proportional to 45,033.80, 67,589.10 and 20,112.20

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Solution

The fourth proportional to 45,033.80, 67,589.10 and 20,112.20 is: 30,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,033.80 : 67,589.10 = 20,112.20 : x
  2. Step 2: Convert to fraction form
    45,033.80/67,589.10 = 20,112.20/x
  3. Step 3: Cross multiply
    45,033.80x = 67,589.10 × 20,112.20
  4. Step 4: Simplify right side
    45,033.80x = 1,359,365,497.02
  5. Step 5: Solve for x
    x = 1,359,365,497.02/45,033.80
  6. Step 6: Final answer
    x = 30,185.45

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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.