Home / 57,063.72-85,610.43-21,991.80

Finding the Fourth Proportional to 57,063.72, 85,610.43 and 21,991.80

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Solution

The fourth proportional to 57,063.72, 85,610.43 and 21,991.80 is: 32,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,063.72 : 85,610.43 = 21,991.80 : x
  2. Step 2: Convert to fraction form
    57,063.72/85,610.43 = 21,991.80/x
  3. Step 3: Cross multiply
    57,063.72x = 85,610.43 × 21,991.80
  4. Step 4: Simplify right side
    57,063.72x = 1,882,727,454.47
  5. Step 5: Solve for x
    x = 1,882,727,454.47/57,063.72
  6. Step 6: Final answer
    x = 32,993.42

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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.