Home / 45,079.75-67,619.63-12,247.75

Finding the Fourth Proportional to 45,079.75, 67,619.63 and 12,247.75

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Solution

The fourth proportional to 45,079.75, 67,619.63 and 12,247.75 is: 18,371.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,079.75 : 67,619.63 = 12,247.75 : x
  2. Step 2: Convert to fraction form
    45,079.75/67,619.63 = 12,247.75/x
  3. Step 3: Cross multiply
    45,079.75x = 67,619.63 × 12,247.75
  4. Step 4: Simplify right side
    45,079.75x = 828,188,323.33
  5. Step 5: Solve for x
    x = 828,188,323.33/45,079.75
  6. Step 6: Final answer
    x = 18,371.63

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Similar ratio
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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.