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Finding the Fourth Proportional to 112,879.60, 169,090.92 and 53,772.40

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Solution

The fourth proportional to 112,879.60, 169,090.92 and 53,772.40 is: 80,549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,879.60 : 169,090.92 = 53,772.40 : x
  2. Step 2: Convert to fraction form
    112,879.60/169,090.92 = 53,772.40/x
  3. Step 3: Cross multiply
    112,879.60x = 169,090.92 × 53,772.40
  4. Step 4: Simplify right side
    112,879.60x = 9,092,424,586.61
  5. Step 5: Solve for x
    x = 9,092,424,586.61/112,879.60
  6. Step 6: Final answer
    x = 80,549.76

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