Home / 71,934.44-99,269.98-40,105.36

Finding the Fourth Proportional to 71,934.44, 99,269.98 and 40,105.36

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Solution

The fourth proportional to 71,934.44, 99,269.98 and 40,105.36 is: 55,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,934.44 : 99,269.98 = 40,105.36 : x
  2. Step 2: Convert to fraction form
    71,934.44/99,269.98 = 40,105.36/x
  3. Step 3: Cross multiply
    71,934.44x = 99,269.98 × 40,105.36
  4. Step 4: Simplify right side
    71,934.44x = 3,981,258,285.09
  5. Step 5: Solve for x
    x = 3,981,258,285.09/71,934.44
  6. Step 6: Final answer
    x = 55,345.65

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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.