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Finding the Fourth Proportional to 68,265.60, 102,401.60 and 21,522.08

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Solution

The fourth proportional to 68,265.60, 102,401.60 and 21,522.08 is: 32,284.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,265.60 : 102,401.60 = 21,522.08 : x
  2. Step 2: Convert to fraction form
    68,265.60/102,401.60 = 21,522.08/x
  3. Step 3: Cross multiply
    68,265.60x = 102,401.60 × 21,522.08
  4. Step 4: Simplify right side
    68,265.60x = 2,203,895,427.33
  5. Step 5: Solve for x
    x = 2,203,895,427.33/68,265.60
  6. Step 6: Final answer
    x = 32,284.13

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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.