Home / 45,288.24-67,919.40-14,115.12

Finding the Fourth Proportional to 45,288.24, 67,919.40 and 14,115.12

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Solution

The fourth proportional to 45,288.24, 67,919.40 and 14,115.12 is: 21,168.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,288.24 : 67,919.40 = 14,115.12 : x
  2. Step 2: Convert to fraction form
    45,288.24/67,919.40 = 14,115.12/x
  3. Step 3: Cross multiply
    45,288.24x = 67,919.40 × 14,115.12
  4. Step 4: Simplify right side
    45,288.24x = 958,690,481.33
  5. Step 5: Solve for x
    x = 958,690,481.33/45,288.24
  6. Step 6: Final answer
    x = 21,168.64

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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.