Home / 80,394.38-120,586.69-36,009.21

Finding the Fourth Proportional to 80,394.38, 120,586.69 and 36,009.21

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Solution

The fourth proportional to 80,394.38, 120,586.69 and 36,009.21 is: 54,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,394.38 : 120,586.69 = 36,009.21 : x
  2. Step 2: Convert to fraction form
    80,394.38/120,586.69 = 36,009.21/x
  3. Step 3: Cross multiply
    80,394.38x = 120,586.69 × 36,009.21
  4. Step 4: Simplify right side
    80,394.38x = 4,342,231,263.37
  5. Step 5: Solve for x
    x = 4,342,231,263.37/80,394.38
  6. Step 6: Final answer
    x = 54,011.63

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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.