Home / 48,858.20-73,229.70-20,778.20

Finding the Fourth Proportional to 48,858.20, 73,229.70 and 20,778.20

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Solution

The fourth proportional to 48,858.20, 73,229.70 and 20,778.20 is: 31,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,858.20 : 73,229.70 = 20,778.20 : x
  2. Step 2: Convert to fraction form
    48,858.20/73,229.70 = 20,778.20/x
  3. Step 3: Cross multiply
    48,858.20x = 73,229.70 × 20,778.20
  4. Step 4: Simplify right side
    48,858.20x = 1,521,581,352.54
  5. Step 5: Solve for x
    x = 1,521,581,352.54/48,858.20
  6. Step 6: Final answer
    x = 31,142.80

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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.