Home / 80,639.23-120,959.04-24,479.77

Finding the Fourth Proportional to 80,639.23, 120,959.04 and 24,479.77

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Solution

The fourth proportional to 80,639.23, 120,959.04 and 24,479.77 is: 36,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,639.23 : 120,959.04 = 24,479.77 : x
  2. Step 2: Convert to fraction form
    80,639.23/120,959.04 = 24,479.77/x
  3. Step 3: Cross multiply
    80,639.23x = 120,959.04 × 24,479.77
  4. Step 4: Simplify right side
    80,639.23x = 2,961,048,873.83
  5. Step 5: Solve for x
    x = 2,961,048,873.83/80,639.23
  6. Step 6: Final answer
    x = 36,719.71

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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.