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Finding the Fourth Proportional to 68,960.20, 103,440.30 and 33,968.20

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Solution

The fourth proportional to 68,960.20, 103,440.30 and 33,968.20 is: 50,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,960.20 : 103,440.30 = 33,968.20 : x
  2. Step 2: Convert to fraction form
    68,960.20/103,440.30 = 33,968.20/x
  3. Step 3: Cross multiply
    68,960.20x = 103,440.30 × 33,968.20
  4. Step 4: Simplify right side
    68,960.20x = 3,513,680,798.46
  5. Step 5: Solve for x
    x = 3,513,680,798.46/68,960.20
  6. Step 6: Final answer
    x = 50,952.30

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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.