Home / 76,851.73-115,287.68-30,098.53

Finding the Fourth Proportional to 76,851.73, 115,287.68 and 30,098.53

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Solution

The fourth proportional to 76,851.73, 115,287.68 and 30,098.53 is: 45,151.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,851.73 : 115,287.68 = 30,098.53 : x
  2. Step 2: Convert to fraction form
    76,851.73/115,287.68 = 30,098.53/x
  3. Step 3: Cross multiply
    76,851.73x = 115,287.68 × 30,098.53
  4. Step 4: Simplify right side
    76,851.73x = 3,469,989,544.62
  5. Step 5: Solve for x
    x = 3,469,989,544.62/76,851.73
  6. Step 6: Final answer
    x = 45,151.74

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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.