Home / 78,831.44-108,789.69-43,023.75

Finding the Fourth Proportional to 78,831.44, 108,789.69 and 43,023.75

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Solution

The fourth proportional to 78,831.44, 108,789.69 and 43,023.75 is: 59,374.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,831.44 : 108,789.69 = 43,023.75 : x
  2. Step 2: Convert to fraction form
    78,831.44/108,789.69 = 43,023.75/x
  3. Step 3: Cross multiply
    78,831.44x = 108,789.69 × 43,023.75
  4. Step 4: Simplify right side
    78,831.44x = 4,680,540,425.14
  5. Step 5: Solve for x
    x = 4,680,540,425.14/78,831.44
  6. Step 6: Final answer
    x = 59,374.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.