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Finding the Fourth Proportional to 98,638.96, 136,135.10 and 55,627.30

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Solution

The fourth proportional to 98,638.96, 136,135.10 and 55,627.30 is: 76,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,638.96 : 136,135.10 = 55,627.30 : x
  2. Step 2: Convert to fraction form
    98,638.96/136,135.10 = 55,627.30/x
  3. Step 3: Cross multiply
    98,638.96x = 136,135.10 × 55,627.30
  4. Step 4: Simplify right side
    98,638.96x = 7,572,827,089.42
  5. Step 5: Solve for x
    x = 7,572,827,089.42/98,638.96
  6. Step 6: Final answer
    x = 76,773.18

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