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Finding the Fourth Proportional to 80,061, 120,081.16 and 35,677.65

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Solution

The fourth proportional to 80,061, 120,081.16 and 35,677.65 is: 53,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,061 : 120,081.16 = 35,677.65 : x
  2. Step 2: Convert to fraction form
    80,061/120,081.16 = 35,677.65/x
  3. Step 3: Cross multiply
    80,061x = 120,081.16 × 35,677.65
  4. Step 4: Simplify right side
    80,061x = 4,284,213,598.07
  5. Step 5: Solve for x
    x = 4,284,213,598.07/80,061
  6. Step 6: Final answer
    x = 53,511.87

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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.