Home / 67,960.20-93,785.70-39,660.42

Finding the Fourth Proportional to 67,960.20, 93,785.70 and 39,660.42

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Solution

The fourth proportional to 67,960.20, 93,785.70 and 39,660.42 is: 54,731.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,960.20 : 93,785.70 = 39,660.42 : x
  2. Step 2: Convert to fraction form
    67,960.20/93,785.70 = 39,660.42/x
  3. Step 3: Cross multiply
    67,960.20x = 93,785.70 × 39,660.42
  4. Step 4: Simplify right side
    67,960.20x = 3,719,580,251.99
  5. Step 5: Solve for x
    x = 3,719,580,251.99/67,960.20
  6. Step 6: Final answer
    x = 54,731.74

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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.