Home / 57,342.32-79,129.70-31,850.33

Finding the Fourth Proportional to 57,342.32, 79,129.70 and 31,850.33

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Solution

The fourth proportional to 57,342.32, 79,129.70 and 31,850.33 is: 43,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,342.32 : 79,129.70 = 31,850.33 : x
  2. Step 2: Convert to fraction form
    57,342.32/79,129.70 = 31,850.33/x
  3. Step 3: Cross multiply
    57,342.32x = 79,129.70 × 31,850.33
  4. Step 4: Simplify right side
    57,342.32x = 2,520,306,502.90
  5. Step 5: Solve for x
    x = 2,520,306,502.90/57,342.32
  6. Step 6: Final answer
    x = 43,951.95

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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.