Home / 72,189.56-108,296.66-22,268.72

Finding the Fourth Proportional to 72,189.56, 108,296.66 and 22,268.72

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Solution

The fourth proportional to 72,189.56, 108,296.66 and 22,268.72 is: 33,406.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,189.56 : 108,296.66 = 22,268.72 : x
  2. Step 2: Convert to fraction form
    72,189.56/108,296.66 = 22,268.72/x
  3. Step 3: Cross multiply
    72,189.56x = 108,296.66 × 22,268.72
  4. Step 4: Simplify right side
    72,189.56x = 2,411,627,512.66
  5. Step 5: Solve for x
    x = 2,411,627,512.66/72,189.56
  6. Step 6: Final answer
    x = 33,406.88

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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.