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Finding the Fourth Proportional to 57,723.70, 86,585.55 and 51,818.80

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Solution

The fourth proportional to 57,723.70, 86,585.55 and 51,818.80 is: 77,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,723.70 : 86,585.55 = 51,818.80 : x
  2. Step 2: Convert to fraction form
    57,723.70/86,585.55 = 51,818.80/x
  3. Step 3: Cross multiply
    57,723.70x = 86,585.55 × 51,818.80
  4. Step 4: Simplify right side
    57,723.70x = 4,486,759,298.34
  5. Step 5: Solve for x
    x = 4,486,759,298.34/57,723.70
  6. Step 6: Final answer
    x = 77,728.20

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