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Finding the Fourth Proportional to 68,354.97, 102,520.62 and 30,906.33

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Solution

The fourth proportional to 68,354.97, 102,520.62 and 30,906.33 is: 46,354.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,354.97 : 102,520.62 = 30,906.33 : x
  2. Step 2: Convert to fraction form
    68,354.97/102,520.62 = 30,906.33/x
  3. Step 3: Cross multiply
    68,354.97x = 102,520.62 × 30,906.33
  4. Step 4: Simplify right side
    68,354.97x = 3,168,536,113.52
  5. Step 5: Solve for x
    x = 3,168,536,113.52/68,354.97
  6. Step 6: Final answer
    x = 46,354.14

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1.5x scale

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.