Home / 51,238.28-76,861.38-19,663.46

Finding the Fourth Proportional to 51,238.28, 76,861.38 and 19,663.46

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Solution

The fourth proportional to 51,238.28, 76,861.38 and 19,663.46 is: 29,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.28 : 76,861.38 = 19,663.46 : x
  2. Step 2: Convert to fraction form
    51,238.28/76,861.38 = 19,663.46/x
  3. Step 3: Cross multiply
    51,238.28x = 76,861.38 × 19,663.46
  4. Step 4: Simplify right side
    51,238.28x = 1,511,360,671.17
  5. Step 5: Solve for x
    x = 1,511,360,671.17/51,238.28
  6. Step 6: Final answer
    x = 29,496.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.