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Finding the Fourth Proportional to 58,739.88, 80,949.30 and 57,660.36

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Solution

The fourth proportional to 58,739.88, 80,949.30 and 57,660.36 is: 79,461.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,739.88 : 80,949.30 = 57,660.36 : x
  2. Step 2: Convert to fraction form
    58,739.88/80,949.30 = 57,660.36/x
  3. Step 3: Cross multiply
    58,739.88x = 80,949.30 × 57,660.36
  4. Step 4: Simplify right side
    58,739.88x = 4,667,565,779.75
  5. Step 5: Solve for x
    x = 4,667,565,779.75/58,739.88
  6. Step 6: Final answer
    x = 79,461.62

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