Home / 45,171.15-67,760.22-13,578.75

Finding the Fourth Proportional to 45,171.15, 67,760.22 and 13,578.75

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Solution

The fourth proportional to 45,171.15, 67,760.22 and 13,578.75 is: 20,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,171.15 : 67,760.22 = 13,578.75 : x
  2. Step 2: Convert to fraction form
    45,171.15/67,760.22 = 13,578.75/x
  3. Step 3: Cross multiply
    45,171.15x = 67,760.22 × 13,578.75
  4. Step 4: Simplify right side
    45,171.15x = 920,099,087.33
  5. Step 5: Solve for x
    x = 920,099,087.33/45,171.15
  6. Step 6: Final answer
    x = 20,369.18

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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.