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Finding the Fourth Proportional to 53,309.81, 79,556.71 and 47,623.63

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Solution

The fourth proportional to 53,309.81, 79,556.71 and 47,623.63 is: 71,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,309.81 : 79,556.71 = 47,623.63 : x
  2. Step 2: Convert to fraction form
    53,309.81/79,556.71 = 47,623.63/x
  3. Step 3: Cross multiply
    53,309.81x = 79,556.71 × 47,623.63
  4. Step 4: Simplify right side
    53,309.81x = 3,788,779,321.06
  5. Step 5: Solve for x
    x = 3,788,779,321.06/53,309.81
  6. Step 6: Final answer
    x = 71,070.96

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