Home / 80,650.11-111,296.53-44,839.80

Finding the Fourth Proportional to 80,650.11, 111,296.53 and 44,839.80

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Solution

The fourth proportional to 80,650.11, 111,296.53 and 44,839.80 is: 61,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,650.11 : 111,296.53 = 44,839.80 : x
  2. Step 2: Convert to fraction form
    80,650.11/111,296.53 = 44,839.80/x
  3. Step 3: Cross multiply
    80,650.11x = 111,296.53 × 44,839.80
  4. Step 4: Simplify right side
    80,650.11x = 4,990,514,145.89
  5. Step 5: Solve for x
    x = 4,990,514,145.89/80,650.11
  6. Step 6: Final answer
    x = 61,878.58

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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.