Home / 45,486.44-68,224.86-12,209.96

Finding the Fourth Proportional to 45,486.44, 68,224.86 and 12,209.96

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Solution

The fourth proportional to 45,486.44, 68,224.86 and 12,209.96 is: 18,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,486.44 : 68,224.86 = 12,209.96 : x
  2. Step 2: Convert to fraction form
    45,486.44/68,224.86 = 12,209.96/x
  3. Step 3: Cross multiply
    45,486.44x = 68,224.86 × 12,209.96
  4. Step 4: Simplify right side
    45,486.44x = 833,022,811.61
  5. Step 5: Solve for x
    x = 833,022,811.61/45,486.44
  6. Step 6: Final answer
    x = 18,313.65

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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.