Home / 57,821.74-86,722.92-20,372.98

Finding the Fourth Proportional to 57,821.74, 86,722.92 and 20,372.98

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Solution

The fourth proportional to 57,821.74, 86,722.92 and 20,372.98 is: 30,556.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,821.74 : 86,722.92 = 20,372.98 : x
  2. Step 2: Convert to fraction form
    57,821.74/86,722.92 = 20,372.98/x
  3. Step 3: Cross multiply
    57,821.74x = 86,722.92 × 20,372.98
  4. Step 4: Simplify right side
    57,821.74x = 1,766,804,314.70
  5. Step 5: Solve for x
    x = 1,766,804,314.70/57,821.74
  6. Step 6: Final answer
    x = 30,556.06

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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.