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Finding the Fourth Proportional to 68,324.93, 102,490.14 and 21,577.82

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Solution

The fourth proportional to 68,324.93, 102,490.14 and 21,577.82 is: 32,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,324.93 : 102,490.14 = 21,577.82 : x
  2. Step 2: Convert to fraction form
    68,324.93/102,490.14 = 21,577.82/x
  3. Step 3: Cross multiply
    68,324.93x = 102,490.14 × 21,577.82
  4. Step 4: Simplify right side
    68,324.93x = 2,211,513,792.69
  5. Step 5: Solve for x
    x = 2,211,513,792.69/68,324.93
  6. Step 6: Final answer
    x = 32,367.60

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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.