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Finding the Fourth Proportional to 35,779.20, 53,668.80 and 33,187.20

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Solution

The fourth proportional to 35,779.20, 53,668.80 and 33,187.20 is: 49,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,779.20 : 53,668.80 = 33,187.20 : x
  2. Step 2: Convert to fraction form
    35,779.20/53,668.80 = 33,187.20/x
  3. Step 3: Cross multiply
    35,779.20x = 53,668.80 × 33,187.20
  4. Step 4: Simplify right side
    35,779.20x = 1,781,117,199.36
  5. Step 5: Solve for x
    x = 1,781,117,199.36/35,779.20
  6. Step 6: Final answer
    x = 49,780.80

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