Home / 80,530.57-111,132.41-44,720.61

Finding the Fourth Proportional to 80,530.57, 111,132.41 and 44,720.61

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Solution

The fourth proportional to 80,530.57, 111,132.41 and 44,720.61 is: 61,714.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,530.57 : 111,132.41 = 44,720.61 : x
  2. Step 2: Convert to fraction form
    80,530.57/111,132.41 = 44,720.61/x
  3. Step 3: Cross multiply
    80,530.57x = 111,132.41 × 44,720.61
  4. Step 4: Simplify right side
    80,530.57x = 4,969,908,525.62
  5. Step 5: Solve for x
    x = 4,969,908,525.62/80,530.57
  6. Step 6: Final answer
    x = 61,714.56

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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.