Home / 68,139.52-102,226.36-40,083.04

Finding the Fourth Proportional to 68,139.52, 102,226.36 and 40,083.04

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Solution

The fourth proportional to 68,139.52, 102,226.36 and 40,083.04 is: 60,134.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,139.52 : 102,226.36 = 40,083.04 : x
  2. Step 2: Convert to fraction form
    68,139.52/102,226.36 = 40,083.04/x
  3. Step 3: Cross multiply
    68,139.52x = 102,226.36 × 40,083.04
  4. Step 4: Simplify right side
    68,139.52x = 4,097,543,276.93
  5. Step 5: Solve for x
    x = 4,097,543,276.93/68,139.52
  6. Step 6: Final answer
    x = 60,134.61

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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.