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Finding the Fourth Proportional to 55,726.80, 83,590.20 and 53,134.80

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Solution

The fourth proportional to 55,726.80, 83,590.20 and 53,134.80 is: 79,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,726.80 : 83,590.20 = 53,134.80 : x
  2. Step 2: Convert to fraction form
    55,726.80/83,590.20 = 53,134.80/x
  3. Step 3: Cross multiply
    55,726.80x = 83,590.20 × 53,134.80
  4. Step 4: Simplify right side
    55,726.80x = 4,441,548,558.96
  5. Step 5: Solve for x
    x = 4,441,548,558.96/55,726.80
  6. Step 6: Final answer
    x = 79,702.20

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