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Finding the Fourth Proportional to 98,420.64, 135,818.06 and 55,976.46

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Solution

The fourth proportional to 98,420.64, 135,818.06 and 55,976.46 is: 77,246.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,420.64 : 135,818.06 = 55,976.46 : x
  2. Step 2: Convert to fraction form
    98,420.64/135,818.06 = 55,976.46/x
  3. Step 3: Cross multiply
    98,420.64x = 135,818.06 × 55,976.46
  4. Step 4: Simplify right side
    98,420.64x = 7,602,614,202.87
  5. Step 5: Solve for x
    x = 7,602,614,202.87/98,420.64
  6. Step 6: Final answer
    x = 77,246.14

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