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Finding the Fourth Proportional to 80,063.28, 120,094.92 and 20,898.44

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Solution

The fourth proportional to 80,063.28, 120,094.92 and 20,898.44 is: 31,347.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,063.28 : 120,094.92 = 20,898.44 : x
  2. Step 2: Convert to fraction form
    80,063.28/120,094.92 = 20,898.44/x
  3. Step 3: Cross multiply
    80,063.28x = 120,094.92 × 20,898.44
  4. Step 4: Simplify right side
    80,063.28x = 2,509,795,879.45
  5. Step 5: Solve for x
    x = 2,509,795,879.45/80,063.28
  6. Step 6: Final answer
    x = 31,347.65

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1.5x scale

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.