Home / 47,921.08-71,891.34-16,778.20

Finding the Fourth Proportional to 47,921.08, 71,891.34 and 16,778.20

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Solution

The fourth proportional to 47,921.08, 71,891.34 and 16,778.20 is: 25,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921.08 : 71,891.34 = 16,778.20 : x
  2. Step 2: Convert to fraction form
    47,921.08/71,891.34 = 16,778.20/x
  3. Step 3: Cross multiply
    47,921.08x = 71,891.34 × 16,778.20
  4. Step 4: Simplify right side
    47,921.08x = 1,206,207,280.79
  5. Step 5: Solve for x
    x = 1,206,207,280.79/47,921.08
  6. Step 6: Final answer
    x = 25,170.70

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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.