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Finding the Fourth Proportional to 66,797.63, 100,203.02 and 19,413.14

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Solution

The fourth proportional to 66,797.63, 100,203.02 and 19,413.14 is: 29,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,797.63 : 100,203.02 = 19,413.14 : x
  2. Step 2: Convert to fraction form
    66,797.63/100,203.02 = 19,413.14/x
  3. Step 3: Cross multiply
    66,797.63x = 100,203.02 × 19,413.14
  4. Step 4: Simplify right side
    66,797.63x = 1,945,254,839.60
  5. Step 5: Solve for x
    x = 1,945,254,839.60/66,797.63
  6. Step 6: Final answer
    x = 29,121.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.