Home / 76,489.07-114,636.24-43,227.68

Finding the Fourth Proportional to 76,489.07, 114,636.24 and 43,227.68

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Solution

The fourth proportional to 76,489.07, 114,636.24 and 43,227.68 is: 64,786.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,489.07 : 114,636.24 = 43,227.68 : x
  2. Step 2: Convert to fraction form
    76,489.07/114,636.24 = 43,227.68/x
  3. Step 3: Cross multiply
    76,489.07x = 114,636.24 × 43,227.68
  4. Step 4: Simplify right side
    76,489.07x = 4,955,458,125.94
  5. Step 5: Solve for x
    x = 4,955,458,125.94/76,489.07
  6. Step 6: Final answer
    x = 64,786.49

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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.