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Finding the Fourth Proportional to 67,745.28, 101,601.52 and 28,280.96

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Solution

The fourth proportional to 67,745.28, 101,601.52 and 28,280.96 is: 42,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,745.28 : 101,601.52 = 28,280.96 : x
  2. Step 2: Convert to fraction form
    67,745.28/101,601.52 = 28,280.96/x
  3. Step 3: Cross multiply
    67,745.28x = 101,601.52 × 28,280.96
  4. Step 4: Simplify right side
    67,745.28x = 2,873,388,523.06
  5. Step 5: Solve for x
    x = 2,873,388,523.06/67,745.28
  6. Step 6: Final answer
    x = 42,414.59

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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.