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Finding the Fourth Proportional to 69,590.48, 104,403 and 20,342.48

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Solution

The fourth proportional to 69,590.48, 104,403 and 20,342.48 is: 30,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,590.48 : 104,403 = 20,342.48 : x
  2. Step 2: Convert to fraction form
    69,590.48/104,403 = 20,342.48/x
  3. Step 3: Cross multiply
    69,590.48x = 104,403 × 20,342.48
  4. Step 4: Simplify right side
    69,590.48x = 2,123,815,939.44
  5. Step 5: Solve for x
    x = 2,123,815,939.44/69,590.48
  6. Step 6: Final answer
    x = 30,518.77

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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.