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Finding the Fourth Proportional to 85,895.89, 118,495.50 and 57,228.86

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Solution

The fourth proportional to 85,895.89, 118,495.50 and 57,228.86 is: 78,948.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,895.89 : 118,495.50 = 57,228.86 : x
  2. Step 2: Convert to fraction form
    85,895.89/118,495.50 = 57,228.86/x
  3. Step 3: Cross multiply
    85,895.89x = 118,495.50 × 57,228.86
  4. Step 4: Simplify right side
    85,895.89x = 6,781,362,380.13
  5. Step 5: Solve for x
    x = 6,781,362,380.13/85,895.89
  6. Step 6: Final answer
    x = 78,948.62

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