Home / 49,049.20-67,690.12-28,906.92

Finding the Fourth Proportional to 49,049.20, 67,690.12 and 28,906.92

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Solution

The fourth proportional to 49,049.20, 67,690.12 and 28,906.92 is: 39,892.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,049.20 : 67,690.12 = 28,906.92 : x
  2. Step 2: Convert to fraction form
    49,049.20/67,690.12 = 28,906.92/x
  3. Step 3: Cross multiply
    49,049.20x = 67,690.12 × 28,906.92
  4. Step 4: Simplify right side
    49,049.20x = 1,956,712,883.63
  5. Step 5: Solve for x
    x = 1,956,712,883.63/49,049.20
  6. Step 6: Final answer
    x = 39,892.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.