Home / 80,541.20-120,745.28-35,530.48

Finding the Fourth Proportional to 80,541.20, 120,745.28 and 35,530.48

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Solution

The fourth proportional to 80,541.20, 120,745.28 and 35,530.48 is: 53,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541.20 : 120,745.28 = 35,530.48 : x
  2. Step 2: Convert to fraction form
    80,541.20/120,745.28 = 35,530.48/x
  3. Step 3: Cross multiply
    80,541.20x = 120,745.28 × 35,530.48
  4. Step 4: Simplify right side
    80,541.20x = 4,290,137,995.89
  5. Step 5: Solve for x
    x = 4,290,137,995.89/80,541.20
  6. Step 6: Final answer
    x = 53,266.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.