Home / 56,818.28-78,412.66-31,324.62

Finding the Fourth Proportional to 56,818.28, 78,412.66 and 31,324.62

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Solution

The fourth proportional to 56,818.28, 78,412.66 and 31,324.62 is: 43,229.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,818.28 : 78,412.66 = 31,324.62 : x
  2. Step 2: Convert to fraction form
    56,818.28/78,412.66 = 31,324.62/x
  3. Step 3: Cross multiply
    56,818.28x = 78,412.66 × 31,324.62
  4. Step 4: Simplify right side
    56,818.28x = 2,456,246,777.69
  5. Step 5: Solve for x
    x = 2,456,246,777.69/56,818.28
  6. Step 6: Final answer
    x = 43,229.87

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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.