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Finding the Fourth Proportional to 68,440.80, 102,574.80 and 33,304.80

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Solution

The fourth proportional to 68,440.80, 102,574.80 and 33,304.80 is: 49,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,440.80 : 102,574.80 = 33,304.80 : x
  2. Step 2: Convert to fraction form
    68,440.80/102,574.80 = 33,304.80/x
  3. Step 3: Cross multiply
    68,440.80x = 102,574.80 × 33,304.80
  4. Step 4: Simplify right side
    68,440.80x = 3,416,233,199.04
  5. Step 5: Solve for x
    x = 3,416,233,199.04/68,440.80
  6. Step 6: Final answer
    x = 49,915.16

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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.