Home / 57,025.22-78,691.38-31,530.05

Finding the Fourth Proportional to 57,025.22, 78,691.38 and 31,530.05

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Solution

The fourth proportional to 57,025.22, 78,691.38 and 31,530.05 is: 43,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,025.22 : 78,691.38 = 31,530.05 : x
  2. Step 2: Convert to fraction form
    57,025.22/78,691.38 = 31,530.05/x
  3. Step 3: Cross multiply
    57,025.22x = 78,691.38 × 31,530.05
  4. Step 4: Simplify right side
    57,025.22x = 2,481,143,145.97
  5. Step 5: Solve for x
    x = 2,481,143,145.97/57,025.22
  6. Step 6: Final answer
    x = 43,509.58

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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.