Home / 80,200.24-120,304.32-21,036.04

Finding the Fourth Proportional to 80,200.24, 120,304.32 and 21,036.04

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Solution

The fourth proportional to 80,200.24, 120,304.32 and 21,036.04 is: 31,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,200.24 : 120,304.32 = 21,036.04 : x
  2. Step 2: Convert to fraction form
    80,200.24/120,304.32 = 21,036.04/x
  3. Step 3: Cross multiply
    80,200.24x = 120,304.32 × 21,036.04
  4. Step 4: Simplify right side
    80,200.24x = 2,530,726,487.69
  5. Step 5: Solve for x
    x = 2,530,726,487.69/80,200.24
  6. Step 6: Final answer
    x = 31,555.10

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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.