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Finding the Fourth Proportional to 56,689.80, 85,034.70 and 48,816.60

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Solution

The fourth proportional to 56,689.80, 85,034.70 and 48,816.60 is: 73,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,689.80 : 85,034.70 = 48,816.60 : x
  2. Step 2: Convert to fraction form
    56,689.80/85,034.70 = 48,816.60/x
  3. Step 3: Cross multiply
    56,689.80x = 85,034.70 × 48,816.60
  4. Step 4: Simplify right side
    56,689.80x = 4,151,104,936.02
  5. Step 5: Solve for x
    x = 4,151,104,936.02/56,689.80
  6. Step 6: Final answer
    x = 73,224.90

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