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Finding the Fourth Proportional to 51,334.29, 70,841.43 and 28,978.29

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Solution

The fourth proportional to 51,334.29, 70,841.43 and 28,978.29 is: 39,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,334.29 : 70,841.43 = 28,978.29 : x
  2. Step 2: Convert to fraction form
    51,334.29/70,841.43 = 28,978.29/x
  3. Step 3: Cross multiply
    51,334.29x = 70,841.43 × 28,978.29
  4. Step 4: Simplify right side
    51,334.29x = 2,052,863,502.55
  5. Step 5: Solve for x
    x = 2,052,863,502.55/51,334.29
  6. Step 6: Final answer
    x = 39,990.10

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