Home / 76,629.15-114,998.40-43,313.85

Finding the Fourth Proportional to 76,629.15, 114,998.40 and 43,313.85

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Solution

The fourth proportional to 76,629.15, 114,998.40 and 43,313.85 is: 65,001.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,629.15 : 114,998.40 = 43,313.85 : x
  2. Step 2: Convert to fraction form
    76,629.15/114,998.40 = 43,313.85/x
  3. Step 3: Cross multiply
    76,629.15x = 114,998.40 × 43,313.85
  4. Step 4: Simplify right side
    76,629.15x = 4,981,023,447.84
  5. Step 5: Solve for x
    x = 4,981,023,447.84/76,629.15
  6. Step 6: Final answer
    x = 65,001.68

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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.