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Finding the Fourth Proportional to 92,971.89, 139,452.84 and 54,524.79

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Solution

The fourth proportional to 92,971.89, 139,452.84 and 54,524.79 is: 81,784.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,971.89 : 139,452.84 = 54,524.79 : x
  2. Step 2: Convert to fraction form
    92,971.89/139,452.84 = 54,524.79/x
  3. Step 3: Cross multiply
    92,971.89x = 139,452.84 × 54,524.79
  4. Step 4: Simplify right side
    92,971.89x = 7,603,636,815.90
  5. Step 5: Solve for x
    x = 7,603,636,815.90/92,971.89
  6. Step 6: Final answer
    x = 81,784.26

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