Home / 80,287.20-110,832.30-57,736.80

Finding the Fourth Proportional to 80,287.20, 110,832.30 and 57,736.80

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Solution

The fourth proportional to 80,287.20, 110,832.30 and 57,736.80 is: 79,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,287.20 : 110,832.30 = 57,736.80 : x
  2. Step 2: Convert to fraction form
    80,287.20/110,832.30 = 57,736.80/x
  3. Step 3: Cross multiply
    80,287.20x = 110,832.30 × 57,736.80
  4. Step 4: Simplify right side
    80,287.20x = 6,399,102,338.64
  5. Step 5: Solve for x
    x = 6,399,102,338.64/80,287.20
  6. Step 6: Final answer
    x = 79,702.65

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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.