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Finding the Fourth Proportional to 57,207.70, 85,811.55 and 38,545.30

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Solution

The fourth proportional to 57,207.70, 85,811.55 and 38,545.30 is: 57,817.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,207.70 : 85,811.55 = 38,545.30 : x
  2. Step 2: Convert to fraction form
    57,207.70/85,811.55 = 38,545.30/x
  3. Step 3: Cross multiply
    57,207.70x = 85,811.55 × 38,545.30
  4. Step 4: Simplify right side
    57,207.70x = 3,307,631,938.22
  5. Step 5: Solve for x
    x = 3,307,631,938.22/57,207.70
  6. Step 6: Final answer
    x = 57,817.95

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