Home / 45,380.72-68,074.32-12,100.61

Finding the Fourth Proportional to 45,380.72, 68,074.32 and 12,100.61

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Solution

The fourth proportional to 45,380.72, 68,074.32 and 12,100.61 is: 18,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,380.72 : 68,074.32 = 12,100.61 : x
  2. Step 2: Convert to fraction form
    45,380.72/68,074.32 = 12,100.61/x
  3. Step 3: Cross multiply
    45,380.72x = 68,074.32 × 12,100.61
  4. Step 4: Simplify right side
    45,380.72x = 823,740,502.34
  5. Step 5: Solve for x
    x = 823,740,502.34/45,380.72
  6. Step 6: Final answer
    x = 18,151.77

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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.