Home / 79,674.18-109,946.19-43,857.19

Finding the Fourth Proportional to 79,674.18, 109,946.19 and 43,857.19

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Solution

The fourth proportional to 79,674.18, 109,946.19 and 43,857.19 is: 60,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,674.18 : 109,946.19 = 43,857.19 : x
  2. Step 2: Convert to fraction form
    79,674.18/109,946.19 = 43,857.19/x
  3. Step 3: Cross multiply
    79,674.18x = 109,946.19 × 43,857.19
  4. Step 4: Simplify right side
    79,674.18x = 4,821,930,725.32
  5. Step 5: Solve for x
    x = 4,821,930,725.32/79,674.18
  6. Step 6: Final answer
    x = 60,520.62

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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.