Home / 204,831.78-307,247.70-57,087.78

Finding the Fourth Proportional to 204,831.78, 307,247.70 and 57,087.78

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Solution

The fourth proportional to 204,831.78, 307,247.70 and 57,087.78 is: 85,631.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,831.78 : 307,247.70 = 57,087.78 : x
  2. Step 2: Convert to fraction form
    204,831.78/307,247.70 = 57,087.78/x
  3. Step 3: Cross multiply
    204,831.78x = 307,247.70 × 57,087.78
  4. Step 4: Simplify right side
    204,831.78x = 17,540,089,103.11
  5. Step 5: Solve for x
    x = 17,540,089,103.11/204,831.78
  6. Step 6: Final answer
    x = 85,631.68

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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.