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Finding the Fourth Proportional to 55,304.29, 76,319.94 and 31,430.35

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Solution

The fourth proportional to 55,304.29, 76,319.94 and 31,430.35 is: 43,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,304.29 : 76,319.94 = 31,430.35 : x
  2. Step 2: Convert to fraction form
    55,304.29/76,319.94 = 31,430.35/x
  3. Step 3: Cross multiply
    55,304.29x = 76,319.94 × 31,430.35
  4. Step 4: Simplify right side
    55,304.29x = 2,398,762,639.44
  5. Step 5: Solve for x
    x = 2,398,762,639.44/55,304.29
  6. Step 6: Final answer
    x = 43,373.90

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