Home / 76,677.12-115,183.34-54,632.16

Finding the Fourth Proportional to 76,677.12, 115,183.34 and 54,632.16

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Solution

The fourth proportional to 76,677.12, 115,183.34 and 54,632.16 is: 82,067.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,677.12 : 115,183.34 = 54,632.16 : x
  2. Step 2: Convert to fraction form
    76,677.12/115,183.34 = 54,632.16/x
  3. Step 3: Cross multiply
    76,677.12x = 115,183.34 × 54,632.16
  4. Step 4: Simplify right side
    76,677.12x = 6,292,714,387.05
  5. Step 5: Solve for x
    x = 6,292,714,387.05/76,677.12
  6. Step 6: Final answer
    x = 82,067.69

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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.