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Finding the Fourth Proportional to 67,186.64, 100,779.96 and 47,700.47

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Solution

The fourth proportional to 67,186.64, 100,779.96 and 47,700.47 is: 71,550.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,186.64 : 100,779.96 = 47,700.47 : x
  2. Step 2: Convert to fraction form
    67,186.64/100,779.96 = 47,700.47/x
  3. Step 3: Cross multiply
    67,186.64x = 100,779.96 × 47,700.47
  4. Step 4: Simplify right side
    67,186.64x = 4,807,251,458.58
  5. Step 5: Solve for x
    x = 4,807,251,458.58/67,186.64
  6. Step 6: Final answer
    x = 71,550.71

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