Home / 80,591.28-120,763.76-33,818.64

Finding the Fourth Proportional to 80,591.28, 120,763.76 and 33,818.64

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Solution

The fourth proportional to 80,591.28, 120,763.76 and 33,818.64 is: 50,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,591.28 : 120,763.76 = 33,818.64 : x
  2. Step 2: Convert to fraction form
    80,591.28/120,763.76 = 33,818.64/x
  3. Step 3: Cross multiply
    80,591.28x = 120,763.76 × 33,818.64
  4. Step 4: Simplify right side
    80,591.28x = 4,084,066,124.49
  5. Step 5: Solve for x
    x = 4,084,066,124.49/80,591.28
  6. Step 6: Final answer
    x = 50,676.28

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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.