Home / 41,129.88-61,730.81-20,085.47

Finding the Fourth Proportional to 41,129.88, 61,730.81 and 20,085.47

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Solution

The fourth proportional to 41,129.88, 61,730.81 and 20,085.47 is: 30,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,129.88 : 61,730.81 = 20,085.47 : x
  2. Step 2: Convert to fraction form
    41,129.88/61,730.81 = 20,085.47/x
  3. Step 3: Cross multiply
    41,129.88x = 61,730.81 × 20,085.47
  4. Step 4: Simplify right side
    41,129.88x = 1,239,892,230.06
  5. Step 5: Solve for x
    x = 1,239,892,230.06/41,129.88
  6. Step 6: Final answer
    x = 30,145.78

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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.