Home / 47,672.48-65,789.78-28,805.96

Finding the Fourth Proportional to 47,672.48, 65,789.78 and 28,805.96

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Solution

The fourth proportional to 47,672.48, 65,789.78 and 28,805.96 is: 39,753.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,672.48 : 65,789.78 = 28,805.96 : x
  2. Step 2: Convert to fraction form
    47,672.48/65,789.78 = 28,805.96/x
  3. Step 3: Cross multiply
    47,672.48x = 65,789.78 × 28,805.96
  4. Step 4: Simplify right side
    47,672.48x = 1,895,137,771.09
  5. Step 5: Solve for x
    x = 1,895,137,771.09/47,672.48
  6. Step 6: Final answer
    x = 39,753.29

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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.