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Finding the Fourth Proportional to 81,543.72, 112,528.98 and 47,571.96

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Solution

The fourth proportional to 81,543.72, 112,528.98 and 47,571.96 is: 65,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,543.72 : 112,528.98 = 47,571.96 : x
  2. Step 2: Convert to fraction form
    81,543.72/112,528.98 = 47,571.96/x
  3. Step 3: Cross multiply
    81,543.72x = 112,528.98 × 47,571.96
  4. Step 4: Simplify right side
    81,543.72x = 5,353,224,135.40
  5. Step 5: Solve for x
    x = 5,353,224,135.40/81,543.72
  6. Step 6: Final answer
    x = 65,648.52

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