Home / 80,219.20-110,703.80-43,920.04

Finding the Fourth Proportional to 80,219.20, 110,703.80 and 43,920.04

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Solution

The fourth proportional to 80,219.20, 110,703.80 and 43,920.04 is: 60,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,219.20 : 110,703.80 = 43,920.04 : x
  2. Step 2: Convert to fraction form
    80,219.20/110,703.80 = 43,920.04/x
  3. Step 3: Cross multiply
    80,219.20x = 110,703.80 × 43,920.04
  4. Step 4: Simplify right side
    80,219.20x = 4,862,115,324.15
  5. Step 5: Solve for x
    x = 4,862,115,324.15/80,219.20
  6. Step 6: Final answer
    x = 60,610.37

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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.