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Finding the Fourth Proportional to 56,228.40, 84,342.60 and 53,377.20

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Solution

The fourth proportional to 56,228.40, 84,342.60 and 53,377.20 is: 80,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,228.40 : 84,342.60 = 53,377.20 : x
  2. Step 2: Convert to fraction form
    56,228.40/84,342.60 = 53,377.20/x
  3. Step 3: Cross multiply
    56,228.40x = 84,342.60 × 53,377.20
  4. Step 4: Simplify right side
    56,228.40x = 4,501,971,828.72
  5. Step 5: Solve for x
    x = 4,501,971,828.72/56,228.40
  6. Step 6: Final answer
    x = 80,065.80

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