Home / 80,640.99-111,278.26-44,828.82

Finding the Fourth Proportional to 80,640.99, 111,278.26 and 44,828.82

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Solution

The fourth proportional to 80,640.99, 111,278.26 and 44,828.82 is: 61,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,640.99 : 111,278.26 = 44,828.82 : x
  2. Step 2: Convert to fraction form
    80,640.99/111,278.26 = 44,828.82/x
  3. Step 3: Cross multiply
    80,640.99x = 111,278.26 × 44,828.82
  4. Step 4: Simplify right side
    80,640.99x = 4,988,472,432.50
  5. Step 5: Solve for x
    x = 4,988,472,432.50/80,640.99
  6. Step 6: Final answer
    x = 61,860.26

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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.