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Finding the Fourth Proportional to 115,920.90, 173,881.35 and 49,363.20

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Solution

The fourth proportional to 115,920.90, 173,881.35 and 49,363.20 is: 74,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,920.90 : 173,881.35 = 49,363.20 : x
  2. Step 2: Convert to fraction form
    115,920.90/173,881.35 = 49,363.20/x
  3. Step 3: Cross multiply
    115,920.90x = 173,881.35 × 49,363.20
  4. Step 4: Simplify right side
    115,920.90x = 8,583,339,856.32
  5. Step 5: Solve for x
    x = 8,583,339,856.32/115,920.90
  6. Step 6: Final answer
    x = 74,044.80

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