Home / 48,481.20-72,678.60-28,738.80

Finding the Fourth Proportional to 48,481.20, 72,678.60 and 28,738.80

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Solution

The fourth proportional to 48,481.20, 72,678.60 and 28,738.80 is: 43,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,481.20 : 72,678.60 = 28,738.80 : x
  2. Step 2: Convert to fraction form
    48,481.20/72,678.60 = 28,738.80/x
  3. Step 3: Cross multiply
    48,481.20x = 72,678.60 × 28,738.80
  4. Step 4: Simplify right side
    48,481.20x = 2,088,695,749.68
  5. Step 5: Solve for x
    x = 2,088,695,749.68/48,481.20
  6. Step 6: Final answer
    x = 43,082.59

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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.