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Finding the Fourth Proportional to 78,683.19, 118,046.70 and 34,313.85

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Solution

The fourth proportional to 78,683.19, 118,046.70 and 34,313.85 is: 51,480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,683.19 : 118,046.70 = 34,313.85 : x
  2. Step 2: Convert to fraction form
    78,683.19/118,046.70 = 34,313.85/x
  3. Step 3: Cross multiply
    78,683.19x = 118,046.70 × 34,313.85
  4. Step 4: Simplify right side
    78,683.19x = 4,050,636,756.80
  5. Step 5: Solve for x
    x = 4,050,636,756.80/78,683.19
  6. Step 6: Final answer
    x = 51,480.33

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