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Finding the Fourth Proportional to 56,670.80, 85,006.20 and 53,445.20

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Solution

The fourth proportional to 56,670.80, 85,006.20 and 53,445.20 is: 80,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,670.80 : 85,006.20 = 53,445.20 : x
  2. Step 2: Convert to fraction form
    56,670.80/85,006.20 = 53,445.20/x
  3. Step 3: Cross multiply
    56,670.80x = 85,006.20 × 53,445.20
  4. Step 4: Simplify right side
    56,670.80x = 4,543,173,360.24
  5. Step 5: Solve for x
    x = 4,543,173,360.24/56,670.80
  6. Step 6: Final answer
    x = 80,167.80

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