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Finding the Fourth Proportional to 36,779.78, 50,755.74 and 20,012.78

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Solution

The fourth proportional to 36,779.78, 50,755.74 and 20,012.78 is: 27,617.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,779.78 : 50,755.74 = 20,012.78 : x
  2. Step 2: Convert to fraction form
    36,779.78/50,755.74 = 20,012.78/x
  3. Step 3: Cross multiply
    36,779.78x = 50,755.74 × 20,012.78
  4. Step 4: Simplify right side
    36,779.78x = 1,015,763,458.36
  5. Step 5: Solve for x
    x = 1,015,763,458.36/36,779.78
  6. Step 6: Final answer
    x = 27,617.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.