Home / 68,120.38-102,179.39-30,653.94

Finding the Fourth Proportional to 68,120.38, 102,179.39 and 30,653.94

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Solution

The fourth proportional to 68,120.38, 102,179.39 and 30,653.94 is: 45,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,120.38 : 102,179.39 = 30,653.94 : x
  2. Step 2: Convert to fraction form
    68,120.38/102,179.39 = 30,653.94/x
  3. Step 3: Cross multiply
    68,120.38x = 102,179.39 × 30,653.94
  4. Step 4: Simplify right side
    68,120.38x = 3,132,200,737.03
  5. Step 5: Solve for x
    x = 3,132,200,737.03/68,120.38
  6. Step 6: Final answer
    x = 45,980.38

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1.5x scale

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.