Home / 45,162.36-67,732.20-20,188.44

Finding the Fourth Proportional to 45,162.36, 67,732.20 and 20,188.44

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Solution

The fourth proportional to 45,162.36, 67,732.20 and 20,188.44 is: 30,277.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,162.36 : 67,732.20 = 20,188.44 : x
  2. Step 2: Convert to fraction form
    45,162.36/67,732.20 = 20,188.44/x
  3. Step 3: Cross multiply
    45,162.36x = 67,732.20 × 20,188.44
  4. Step 4: Simplify right side
    45,162.36x = 1,367,407,455.77
  5. Step 5: Solve for x
    x = 1,367,407,455.77/45,162.36
  6. Step 6: Final answer
    x = 30,277.59

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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.