Home / 52,091.20-71,886.20-28,217.87

Finding the Fourth Proportional to 52,091.20, 71,886.20 and 28,217.87

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Solution

The fourth proportional to 52,091.20, 71,886.20 and 28,217.87 is: 38,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,091.20 : 71,886.20 = 28,217.87 : x
  2. Step 2: Convert to fraction form
    52,091.20/71,886.20 = 28,217.87/x
  3. Step 3: Cross multiply
    52,091.20x = 71,886.20 × 28,217.87
  4. Step 4: Simplify right side
    52,091.20x = 2,028,475,446.39
  5. Step 5: Solve for x
    x = 2,028,475,446.39/52,091.20
  6. Step 6: Final answer
    x = 38,940.85

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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.