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Finding the Fourth Proportional to 53,641.90, 80,431.70 and 35,892.88

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Solution

The fourth proportional to 53,641.90, 80,431.70 and 35,892.88 is: 53,818.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,641.90 : 80,431.70 = 35,892.88 : x
  2. Step 2: Convert to fraction form
    53,641.90/80,431.70 = 35,892.88/x
  3. Step 3: Cross multiply
    53,641.90x = 80,431.70 × 35,892.88
  4. Step 4: Simplify right side
    53,641.90x = 2,886,925,356.30
  5. Step 5: Solve for x
    x = 2,886,925,356.30/53,641.90
  6. Step 6: Final answer
    x = 53,818.48

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