Home / 74,226.12-102,432.18-40,234.61

Finding the Fourth Proportional to 74,226.12, 102,432.18 and 40,234.61

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Solution

The fourth proportional to 74,226.12, 102,432.18 and 40,234.61 is: 55,523.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,226.12 : 102,432.18 = 40,234.61 : x
  2. Step 2: Convert to fraction form
    74,226.12/102,432.18 = 40,234.61/x
  3. Step 3: Cross multiply
    74,226.12x = 102,432.18 × 40,234.61
  4. Step 4: Simplify right side
    74,226.12x = 4,121,318,301.59
  5. Step 5: Solve for x
    x = 4,121,318,301.59/74,226.12
  6. Step 6: Final answer
    x = 55,523.83

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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.