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Finding the Fourth Proportional to 78,089.75, 117,137.87 and 22,685.75

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Solution

The fourth proportional to 78,089.75, 117,137.87 and 22,685.75 is: 34,029.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,089.75 : 117,137.87 = 22,685.75 : x
  2. Step 2: Convert to fraction form
    78,089.75/117,137.87 = 22,685.75/x
  3. Step 3: Cross multiply
    78,089.75x = 117,137.87 × 22,685.75
  4. Step 4: Simplify right side
    78,089.75x = 2,657,360,434.35
  5. Step 5: Solve for x
    x = 2,657,360,434.35/78,089.75
  6. Step 6: Final answer
    x = 34,029.57

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