Home / 45,216.18-67,837.44-20,250.66

Finding the Fourth Proportional to 45,216.18, 67,837.44 and 20,250.66

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Solution

The fourth proportional to 45,216.18, 67,837.44 and 20,250.66 is: 30,381.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,216.18 : 67,837.44 = 20,250.66 : x
  2. Step 2: Convert to fraction form
    45,216.18/67,837.44 = 20,250.66/x
  3. Step 3: Cross multiply
    45,216.18x = 67,837.44 × 20,250.66
  4. Step 4: Simplify right side
    45,216.18x = 1,373,752,932.71
  5. Step 5: Solve for x
    x = 1,373,752,932.71/45,216.18
  6. Step 6: Final answer
    x = 30,381.89

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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.