Home / 39,861.08-59,680.89-20,079.66

Finding the Fourth Proportional to 39,861.08, 59,680.89 and 20,079.66

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Solution

The fourth proportional to 39,861.08, 59,680.89 and 20,079.66 is: 30,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861.08 : 59,680.89 = 20,079.66 : x
  2. Step 2: Convert to fraction form
    39,861.08/59,680.89 = 20,079.66/x
  3. Step 3: Cross multiply
    39,861.08x = 59,680.89 × 20,079.66
  4. Step 4: Simplify right side
    39,861.08x = 1,198,371,979.70
  5. Step 5: Solve for x
    x = 1,198,371,979.70/39,861.08
  6. Step 6: Final answer
    x = 30,063.71

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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.