Home / 79,020.54-109,027.26-48,409.92

Finding the Fourth Proportional to 79,020.54, 109,027.26 and 48,409.92

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Solution

The fourth proportional to 79,020.54, 109,027.26 and 48,409.92 is: 66,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,020.54 : 109,027.26 = 48,409.92 : x
  2. Step 2: Convert to fraction form
    79,020.54/109,027.26 = 48,409.92/x
  3. Step 3: Cross multiply
    79,020.54x = 109,027.26 × 48,409.92
  4. Step 4: Simplify right side
    79,020.54x = 5,278,000,934.42
  5. Step 5: Solve for x
    x = 5,278,000,934.42/79,020.54
  6. Step 6: Final answer
    x = 66,792.77

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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.