Home / 80,034.24-120,118.72-40,041.20

Finding the Fourth Proportional to 80,034.24, 120,118.72 and 40,041.20

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Solution

The fourth proportional to 80,034.24, 120,118.72 and 40,041.20 is: 60,095.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,034.24 : 120,118.72 = 40,041.20 : x
  2. Step 2: Convert to fraction form
    80,034.24/120,118.72 = 40,041.20/x
  3. Step 3: Cross multiply
    80,034.24x = 120,118.72 × 40,041.20
  4. Step 4: Simplify right side
    80,034.24x = 4,809,697,691.26
  5. Step 5: Solve for x
    x = 4,809,697,691.26/80,034.24
  6. Step 6: Final answer
    x = 60,095.50

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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.