Home / 72,764.91-100,414.62-40,933.80

Finding the Fourth Proportional to 72,764.91, 100,414.62 and 40,933.80

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Solution

The fourth proportional to 72,764.91, 100,414.62 and 40,933.80 is: 56,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,764.91 : 100,414.62 = 40,933.80 : x
  2. Step 2: Convert to fraction form
    72,764.91/100,414.62 = 40,933.80/x
  3. Step 3: Cross multiply
    72,764.91x = 100,414.62 × 40,933.80
  4. Step 4: Simplify right side
    72,764.91x = 4,110,351,972.16
  5. Step 5: Solve for x
    x = 4,110,351,972.16/72,764.91
  6. Step 6: Final answer
    x = 56,488.11

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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.