Home / 79,247.07-109,372.17-49,042.13

Finding the Fourth Proportional to 79,247.07, 109,372.17 and 49,042.13

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Solution

The fourth proportional to 79,247.07, 109,372.17 and 49,042.13 is: 67,685.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,247.07 : 109,372.17 = 49,042.13 : x
  2. Step 2: Convert to fraction form
    79,247.07/109,372.17 = 49,042.13/x
  3. Step 3: Cross multiply
    79,247.07x = 109,372.17 × 49,042.13
  4. Step 4: Simplify right side
    79,247.07x = 5,363,843,632.66
  5. Step 5: Solve for x
    x = 5,363,843,632.66/79,247.07
  6. Step 6: Final answer
    x = 67,685.07

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1.5x scale

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.