Home / 80,620.26-111,286.15-60,535.17

Finding the Fourth Proportional to 80,620.26, 111,286.15 and 60,535.17

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Solution

The fourth proportional to 80,620.26, 111,286.15 and 60,535.17 is: 83,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,620.26 : 111,286.15 = 60,535.17 : x
  2. Step 2: Convert to fraction form
    80,620.26/111,286.15 = 60,535.17/x
  3. Step 3: Cross multiply
    80,620.26x = 111,286.15 × 60,535.17
  4. Step 4: Simplify right side
    80,620.26x = 6,736,726,511.06
  5. Step 5: Solve for x
    x = 6,736,726,511.06/80,620.26
  6. Step 6: Final answer
    x = 83,561.21

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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.