Home / 76,831.44-115,299.06-26,911.92

Finding the Fourth Proportional to 76,831.44, 115,299.06 and 26,911.92

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Solution

The fourth proportional to 76,831.44, 115,299.06 and 26,911.92 is: 40,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,831.44 : 115,299.06 = 26,911.92 : x
  2. Step 2: Convert to fraction form
    76,831.44/115,299.06 = 26,911.92/x
  3. Step 3: Cross multiply
    76,831.44x = 115,299.06 × 26,911.92
  4. Step 4: Simplify right side
    76,831.44x = 3,102,919,078.80
  5. Step 5: Solve for x
    x = 3,102,919,078.80/76,831.44
  6. Step 6: Final answer
    x = 40,386.06

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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.