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Finding the Fourth Proportional to 84,744.72, 127,076.67 and 31,400.10

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Solution

The fourth proportional to 84,744.72, 127,076.67 and 31,400.10 is: 47,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,744.72 : 127,076.67 = 31,400.10 : x
  2. Step 2: Convert to fraction form
    84,744.72/127,076.67 = 31,400.10/x
  3. Step 3: Cross multiply
    84,744.72x = 127,076.67 × 31,400.10
  4. Step 4: Simplify right side
    84,744.72x = 3,990,220,145.67
  5. Step 5: Solve for x
    x = 3,990,220,145.67/84,744.72
  6. Step 6: Final answer
    x = 47,085.18

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