Home / 68,724.01-103,086.09-18,800.41

Finding the Fourth Proportional to 68,724.01, 103,086.09 and 18,800.41

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Solution

The fourth proportional to 68,724.01, 103,086.09 and 18,800.41 is: 28,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,724.01 : 103,086.09 = 18,800.41 : x
  2. Step 2: Convert to fraction form
    68,724.01/103,086.09 = 18,800.41/x
  3. Step 3: Cross multiply
    68,724.01x = 103,086.09 × 18,800.41
  4. Step 4: Simplify right side
    68,724.01x = 1,938,060,757.30
  5. Step 5: Solve for x
    x = 1,938,060,757.30/68,724.01
  6. Step 6: Final answer
    x = 28,200.64

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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.