Home / 51,245.28-76,876.08-21,663.36

Finding the Fourth Proportional to 51,245.28, 76,876.08 and 21,663.36

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Solution

The fourth proportional to 51,245.28, 76,876.08 and 21,663.36 is: 32,498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,245.28 : 76,876.08 = 21,663.36 : x
  2. Step 2: Convert to fraction form
    51,245.28/76,876.08 = 21,663.36/x
  3. Step 3: Cross multiply
    51,245.28x = 76,876.08 × 21,663.36
  4. Step 4: Simplify right side
    51,245.28x = 1,665,394,196.43
  5. Step 5: Solve for x
    x = 1,665,394,196.43/51,245.28
  6. Step 6: Final answer
    x = 32,498.49

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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.