Home / 72,003.22-108,028.51-34,068.78

Finding the Fourth Proportional to 72,003.22, 108,028.51 and 34,068.78

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Solution

The fourth proportional to 72,003.22, 108,028.51 and 34,068.78 is: 51,114.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,003.22 : 108,028.51 = 34,068.78 : x
  2. Step 2: Convert to fraction form
    72,003.22/108,028.51 = 34,068.78/x
  3. Step 3: Cross multiply
    72,003.22x = 108,028.51 × 34,068.78
  4. Step 4: Simplify right side
    72,003.22x = 3,680,399,455.75
  5. Step 5: Solve for x
    x = 3,680,399,455.75/72,003.22
  6. Step 6: Final answer
    x = 51,114.37

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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.