Home / 48,851.16-73,279.86-18,879.72

Finding the Fourth Proportional to 48,851.16, 73,279.86 and 18,879.72

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Solution

The fourth proportional to 48,851.16, 73,279.86 and 18,879.72 is: 28,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,851.16 : 73,279.86 = 18,879.72 : x
  2. Step 2: Convert to fraction form
    48,851.16/73,279.86 = 18,879.72/x
  3. Step 3: Cross multiply
    48,851.16x = 73,279.86 × 18,879.72
  4. Step 4: Simplify right side
    48,851.16x = 1,383,503,238.44
  5. Step 5: Solve for x
    x = 1,383,503,238.44/48,851.16
  6. Step 6: Final answer
    x = 28,320.79

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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.