Home / 80,640.22-111,287.30-44,830.83

Finding the Fourth Proportional to 80,640.22, 111,287.30 and 44,830.83

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Solution

The fourth proportional to 80,640.22, 111,287.30 and 44,830.83 is: 61,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,640.22 : 111,287.30 = 44,830.83 : x
  2. Step 2: Convert to fraction form
    80,640.22/111,287.30 = 44,830.83/x
  3. Step 3: Cross multiply
    80,640.22x = 111,287.30 × 44,830.83
  4. Step 4: Simplify right side
    80,640.22x = 4,989,102,139.54
  5. Step 5: Solve for x
    x = 4,989,102,139.54/80,640.22
  6. Step 6: Final answer
    x = 61,868.66

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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.