Home / 45,105.12-67,661.66-11,825.06

Finding the Fourth Proportional to 45,105.12, 67,661.66 and 11,825.06

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Solution

The fourth proportional to 45,105.12, 67,661.66 and 11,825.06 is: 17,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,105.12 : 67,661.66 = 11,825.06 : x
  2. Step 2: Convert to fraction form
    45,105.12/67,661.66 = 11,825.06/x
  3. Step 3: Cross multiply
    45,105.12x = 67,661.66 × 11,825.06
  4. Step 4: Simplify right side
    45,105.12x = 800,102,880.45
  5. Step 5: Solve for x
    x = 800,102,880.45/45,105.12
  6. Step 6: Final answer
    x = 17,738.63

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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.