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Finding the Fourth Proportional to 68,604.78, 102,907.17 and 45,061.12

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Solution

The fourth proportional to 68,604.78, 102,907.17 and 45,061.12 is: 67,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,604.78 : 102,907.17 = 45,061.12 : x
  2. Step 2: Convert to fraction form
    68,604.78/102,907.17 = 45,061.12/x
  3. Step 3: Cross multiply
    68,604.78x = 102,907.17 × 45,061.12
  4. Step 4: Simplify right side
    68,604.78x = 4,637,112,336.23
  5. Step 5: Solve for x
    x = 4,637,112,336.23/68,604.78
  6. Step 6: Final answer
    x = 67,591.68

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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.