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Finding the Fourth Proportional to 57,085.55, 78,776.12 and 31,592.99

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Solution

The fourth proportional to 57,085.55, 78,776.12 and 31,592.99 is: 43,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,085.55 : 78,776.12 = 31,592.99 : x
  2. Step 2: Convert to fraction form
    57,085.55/78,776.12 = 31,592.99/x
  3. Step 3: Cross multiply
    57,085.55x = 78,776.12 × 31,592.99
  4. Step 4: Simplify right side
    57,085.55x = 2,488,773,171.40
  5. Step 5: Solve for x
    x = 2,488,773,171.40/57,085.55
  6. Step 6: Final answer
    x = 43,597.25

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