Home / 40,245.25-60,371.21-12,543.25

Finding the Fourth Proportional to 40,245.25, 60,371.21 and 12,543.25

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Solution

The fourth proportional to 40,245.25, 60,371.21 and 12,543.25 is: 18,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,245.25 : 60,371.21 = 12,543.25 : x
  2. Step 2: Convert to fraction form
    40,245.25/60,371.21 = 12,543.25/x
  3. Step 3: Cross multiply
    40,245.25x = 60,371.21 × 12,543.25
  4. Step 4: Simplify right side
    40,245.25x = 757,251,117.12
  5. Step 5: Solve for x
    x = 757,251,117.12/40,245.25
  6. Step 6: Final answer
    x = 18,815.91

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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.