Home / 45,250.25-67,764.61-31,890.41

Finding the Fourth Proportional to 45,250.25, 67,764.61 and 31,890.41

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Solution

The fourth proportional to 45,250.25, 67,764.61 and 31,890.41 is: 47,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,250.25 : 67,764.61 = 31,890.41 : x
  2. Step 2: Convert to fraction form
    45,250.25/67,764.61 = 31,890.41/x
  3. Step 3: Cross multiply
    45,250.25x = 67,764.61 × 31,890.41
  4. Step 4: Simplify right side
    45,250.25x = 2,161,041,286.08
  5. Step 5: Solve for x
    x = 2,161,041,286.08/45,250.25
  6. Step 6: Final answer
    x = 47,757.55

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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.