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Finding the Fourth Proportional to 53,271.81, 79,881.53 and 31,090.77

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Solution

The fourth proportional to 53,271.81, 79,881.53 and 31,090.77 is: 46,620.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,271.81 : 79,881.53 = 31,090.77 : x
  2. Step 2: Convert to fraction form
    53,271.81/79,881.53 = 31,090.77/x
  3. Step 3: Cross multiply
    53,271.81x = 79,881.53 × 31,090.77
  4. Step 4: Simplify right side
    53,271.81x = 2,483,578,121.02
  5. Step 5: Solve for x
    x = 2,483,578,121.02/53,271.81
  6. Step 6: Final answer
    x = 46,620.87

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