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Finding the Fourth Proportional to 99,530.50, 137,352.09 and 54,818.50

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Solution

The fourth proportional to 99,530.50, 137,352.09 and 54,818.50 is: 75,649.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,530.50 : 137,352.09 = 54,818.50 : x
  2. Step 2: Convert to fraction form
    99,530.50/137,352.09 = 54,818.50/x
  3. Step 3: Cross multiply
    99,530.50x = 137,352.09 × 54,818.50
  4. Step 4: Simplify right side
    99,530.50x = 7,529,435,545.67
  5. Step 5: Solve for x
    x = 7,529,435,545.67/99,530.50
  6. Step 6: Final answer
    x = 75,649.53

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