Home / 40,917.20-61,375.80-21,201.80

Finding the Fourth Proportional to 40,917.20, 61,375.80 and 21,201.80

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Solution

The fourth proportional to 40,917.20, 61,375.80 and 21,201.80 is: 31,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,917.20 : 61,375.80 = 21,201.80 : x
  2. Step 2: Convert to fraction form
    40,917.20/61,375.80 = 21,201.80/x
  3. Step 3: Cross multiply
    40,917.20x = 61,375.80 × 21,201.80
  4. Step 4: Simplify right side
    40,917.20x = 1,301,277,436.44
  5. Step 5: Solve for x
    x = 1,301,277,436.44/40,917.20
  6. Step 6: Final answer
    x = 31,802.70

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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.