Home / 76,806.91-115,185.46-29,419.48

Finding the Fourth Proportional to 76,806.91, 115,185.46 and 29,419.48

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Solution

The fourth proportional to 76,806.91, 115,185.46 and 29,419.48 is: 44,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,806.91 : 115,185.46 = 29,419.48 : x
  2. Step 2: Convert to fraction form
    76,806.91/115,185.46 = 29,419.48/x
  3. Step 3: Cross multiply
    76,806.91x = 115,185.46 × 29,419.48
  4. Step 4: Simplify right side
    76,806.91x = 3,388,696,568.01
  5. Step 5: Solve for x
    x = 3,388,696,568.01/76,806.91
  6. Step 6: Final answer
    x = 44,119.68

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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.