Home / 78,986.24-108,917.76-49,126.40

Finding the Fourth Proportional to 78,986.24, 108,917.76 and 49,126.40

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Solution

The fourth proportional to 78,986.24, 108,917.76 and 49,126.40 is: 67,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,986.24 : 108,917.76 = 49,126.40 : x
  2. Step 2: Convert to fraction form
    78,986.24/108,917.76 = 49,126.40/x
  3. Step 3: Cross multiply
    78,986.24x = 108,917.76 × 49,126.40
  4. Step 4: Simplify right side
    78,986.24x = 5,350,737,444.86
  5. Step 5: Solve for x
    x = 5,350,737,444.86/78,986.24
  6. Step 6: Final answer
    x = 67,742.65

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