Home / 79,640.11-109,899.18-43,823.23

Finding the Fourth Proportional to 79,640.11, 109,899.18 and 43,823.23

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Solution

The fourth proportional to 79,640.11, 109,899.18 and 43,823.23 is: 60,473.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,640.11 : 109,899.18 = 43,823.23 : x
  2. Step 2: Convert to fraction form
    79,640.11/109,899.18 = 43,823.23/x
  3. Step 3: Cross multiply
    79,640.11x = 109,899.18 × 43,823.23
  4. Step 4: Simplify right side
    79,640.11x = 4,816,136,767.20
  5. Step 5: Solve for x
    x = 4,816,136,767.20/79,640.11
  6. Step 6: Final answer
    x = 60,473.76

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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.