Home / 57,035.88-78,707.24-31,540.58

Finding the Fourth Proportional to 57,035.88, 78,707.24 and 31,540.58

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Solution

The fourth proportional to 57,035.88, 78,707.24 and 31,540.58 is: 43,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,035.88 : 78,707.24 = 31,540.58 : x
  2. Step 2: Convert to fraction form
    57,035.88/78,707.24 = 31,540.58/x
  3. Step 3: Cross multiply
    57,035.88x = 78,707.24 × 31,540.58
  4. Step 4: Simplify right side
    57,035.88x = 2,482,471,448.56
  5. Step 5: Solve for x
    x = 2,482,471,448.56/57,035.88
  6. Step 6: Final answer
    x = 43,524.73

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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.