Home / 55,872.35-83,861.19-20,367.98

Finding the Fourth Proportional to 55,872.35, 83,861.19 and 20,367.98

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Solution

The fourth proportional to 55,872.35, 83,861.19 and 20,367.98 is: 30,571.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,872.35 : 83,861.19 = 20,367.98 : x
  2. Step 2: Convert to fraction form
    55,872.35/83,861.19 = 20,367.98/x
  3. Step 3: Cross multiply
    55,872.35x = 83,861.19 × 20,367.98
  4. Step 4: Simplify right side
    55,872.35x = 1,708,083,040.70
  5. Step 5: Solve for x
    x = 1,708,083,040.70/55,872.35
  6. Step 6: Final answer
    x = 30,571.17

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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.