Home / 80,730.39-121,121.52-24,581.37

Finding the Fourth Proportional to 80,730.39, 121,121.52 and 24,581.37

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Solution

The fourth proportional to 80,730.39, 121,121.52 and 24,581.37 is: 36,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,730.39 : 121,121.52 = 24,581.37 : x
  2. Step 2: Convert to fraction form
    80,730.39/121,121.52 = 24,581.37/x
  3. Step 3: Cross multiply
    80,730.39x = 121,121.52 × 24,581.37
  4. Step 4: Simplify right side
    80,730.39x = 2,977,332,898.08
  5. Step 5: Solve for x
    x = 2,977,332,898.08/80,730.39
  6. Step 6: Final answer
    x = 36,879.95

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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.