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Finding the Fourth Proportional to 58,011.20, 87,016.80 and 54,555.20

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Solution

The fourth proportional to 58,011.20, 87,016.80 and 54,555.20 is: 81,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,011.20 : 87,016.80 = 54,555.20 : x
  2. Step 2: Convert to fraction form
    58,011.20/87,016.80 = 54,555.20/x
  3. Step 3: Cross multiply
    58,011.20x = 87,016.80 × 54,555.20
  4. Step 4: Simplify right side
    58,011.20x = 4,747,218,927.36
  5. Step 5: Solve for x
    x = 4,747,218,927.36/58,011.20
  6. Step 6: Final answer
    x = 81,832.80

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