Home / 48,511.80-72,753.30-18,912.60

Finding the Fourth Proportional to 48,511.80, 72,753.30 and 18,912.60

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Solution

The fourth proportional to 48,511.80, 72,753.30 and 18,912.60 is: 28,363.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,511.80 : 72,753.30 = 18,912.60 : x
  2. Step 2: Convert to fraction form
    48,511.80/72,753.30 = 18,912.60/x
  3. Step 3: Cross multiply
    48,511.80x = 72,753.30 × 18,912.60
  4. Step 4: Simplify right side
    48,511.80x = 1,375,954,061.58
  5. Step 5: Solve for x
    x = 1,375,954,061.58/48,511.80
  6. Step 6: Final answer
    x = 28,363.29

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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.