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Finding the Fourth Proportional to 77,758.40, 116,637.60 and 31,044.80

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Solution

The fourth proportional to 77,758.40, 116,637.60 and 31,044.80 is: 46,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,758.40 : 116,637.60 = 31,044.80 : x
  2. Step 2: Convert to fraction form
    77,758.40/116,637.60 = 31,044.80/x
  3. Step 3: Cross multiply
    77,758.40x = 116,637.60 × 31,044.80
  4. Step 4: Simplify right side
    77,758.40x = 3,620,990,964.48
  5. Step 5: Solve for x
    x = 3,620,990,964.48/77,758.40
  6. Step 6: Final answer
    x = 46,567.20

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