Home / 56,672.46-78,213.13-31,183.92

Finding the Fourth Proportional to 56,672.46, 78,213.13 and 31,183.92

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Solution

The fourth proportional to 56,672.46, 78,213.13 and 31,183.92 is: 43,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,672.46 : 78,213.13 = 31,183.92 : x
  2. Step 2: Convert to fraction form
    56,672.46/78,213.13 = 31,183.92/x
  3. Step 3: Cross multiply
    56,672.46x = 78,213.13 × 31,183.92
  4. Step 4: Simplify right side
    56,672.46x = 2,438,991,910.91
  5. Step 5: Solve for x
    x = 2,438,991,910.91/56,672.46
  6. Step 6: Final answer
    x = 43,036.63

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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.