Home / 73,815.96-110,707.38-21,213.72

Finding the Fourth Proportional to 73,815.96, 110,707.38 and 21,213.72

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Solution

The fourth proportional to 73,815.96, 110,707.38 and 21,213.72 is: 31,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,815.96 : 110,707.38 = 21,213.72 : x
  2. Step 2: Convert to fraction form
    73,815.96/110,707.38 = 21,213.72/x
  3. Step 3: Cross multiply
    73,815.96x = 110,707.38 × 21,213.72
  4. Step 4: Simplify right side
    73,815.96x = 2,348,515,361.25
  5. Step 5: Solve for x
    x = 2,348,515,361.25/73,815.96
  6. Step 6: Final answer
    x = 31,815.82

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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.