Home / 80,285.58-120,434.64-24,121.32

Finding the Fourth Proportional to 80,285.58, 120,434.64 and 24,121.32

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Solution

The fourth proportional to 80,285.58, 120,434.64 and 24,121.32 is: 36,183.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,285.58 : 120,434.64 = 24,121.32 : x
  2. Step 2: Convert to fraction form
    80,285.58/120,434.64 = 24,121.32/x
  3. Step 3: Cross multiply
    80,285.58x = 120,434.64 × 24,121.32
  4. Step 4: Simplify right side
    80,285.58x = 2,905,042,490.52
  5. Step 5: Solve for x
    x = 2,905,042,490.52/80,285.58
  6. Step 6: Final answer
    x = 36,183.86

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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.