Home / 80,620.20-111,257.15-46,636.38

Finding the Fourth Proportional to 80,620.20, 111,257.15 and 46,636.38

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Solution

The fourth proportional to 80,620.20, 111,257.15 and 46,636.38 is: 64,358.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,620.20 : 111,257.15 = 46,636.38 : x
  2. Step 2: Convert to fraction form
    80,620.20/111,257.15 = 46,636.38/x
  3. Step 3: Cross multiply
    80,620.20x = 111,257.15 × 46,636.38
  4. Step 4: Simplify right side
    80,620.20x = 5,188,630,491.94
  5. Step 5: Solve for x
    x = 5,188,630,491.94/80,620.20
  6. Step 6: Final answer
    x = 64,358.94

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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.