Home / 57,162.39-78,884.43-31,669.56

Finding the Fourth Proportional to 57,162.39, 78,884.43 and 31,669.56

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Solution

The fourth proportional to 57,162.39, 78,884.43 and 31,669.56 is: 43,704.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,162.39 : 78,884.43 = 31,669.56 : x
  2. Step 2: Convert to fraction form
    57,162.39/78,884.43 = 31,669.56/x
  3. Step 3: Cross multiply
    57,162.39x = 78,884.43 × 31,669.56
  4. Step 4: Simplify right side
    57,162.39x = 2,498,235,188.95
  5. Step 5: Solve for x
    x = 2,498,235,188.95/57,162.39
  6. Step 6: Final answer
    x = 43,704.18

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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.