Home / 80,774.42-121,161.69-36,349.29

Finding the Fourth Proportional to 80,774.42, 121,161.69 and 36,349.29

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Solution

The fourth proportional to 80,774.42, 121,161.69 and 36,349.29 is: 54,523.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,774.42 : 121,161.69 = 36,349.29 : x
  2. Step 2: Convert to fraction form
    80,774.42/121,161.69 = 36,349.29/x
  3. Step 3: Cross multiply
    80,774.42x = 121,161.69 × 36,349.29
  4. Step 4: Simplify right side
    80,774.42x = 4,404,141,406.70
  5. Step 5: Solve for x
    x = 4,404,141,406.70/80,774.42
  6. Step 6: Final answer
    x = 54,523.97

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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.