Home / 76,733.73-115,131.78-61,103.97

Finding the Fourth Proportional to 76,733.73, 115,131.78 and 61,103.97

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Solution

The fourth proportional to 76,733.73, 115,131.78 and 61,103.97 is: 91,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,733.73 : 115,131.78 = 61,103.97 : x
  2. Step 2: Convert to fraction form
    76,733.73/115,131.78 = 61,103.97/x
  3. Step 3: Cross multiply
    76,733.73x = 115,131.78 × 61,103.97
  4. Step 4: Simplify right side
    76,733.73x = 7,035,008,831.17
  5. Step 5: Solve for x
    x = 7,035,008,831.17/76,733.73
  6. Step 6: Final answer
    x = 91,680.79

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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.