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Finding the Fourth Proportional to 92,890.68, 139,391.28 and 64,449.96

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Solution

The fourth proportional to 92,890.68, 139,391.28 and 64,449.96 is: 96,713.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,890.68 : 139,391.28 = 64,449.96 : x
  2. Step 2: Convert to fraction form
    92,890.68/139,391.28 = 64,449.96/x
  3. Step 3: Cross multiply
    92,890.68x = 139,391.28 × 64,449.96
  4. Step 4: Simplify right side
    92,890.68x = 8,983,762,420.35
  5. Step 5: Solve for x
    x = 8,983,762,420.35/92,890.68
  6. Step 6: Final answer
    x = 96,713.28

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