Home / 80,635.48-120,953.04-21,471.16

Finding the Fourth Proportional to 80,635.48, 120,953.04 and 21,471.16

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Solution

The fourth proportional to 80,635.48, 120,953.04 and 21,471.16 is: 32,206.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,635.48 : 120,953.04 = 21,471.16 : x
  2. Step 2: Convert to fraction form
    80,635.48/120,953.04 = 21,471.16/x
  3. Step 3: Cross multiply
    80,635.48x = 120,953.04 × 21,471.16
  4. Step 4: Simplify right side
    80,635.48x = 2,597,002,074.33
  5. Step 5: Solve for x
    x = 2,597,002,074.33/80,635.48
  6. Step 6: Final answer
    x = 32,206.69

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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.