Home / 57,395.90-79,202.50-31,900.61

Finding the Fourth Proportional to 57,395.90, 79,202.50 and 31,900.61

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Solution

The fourth proportional to 57,395.90, 79,202.50 and 31,900.61 is: 44,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,395.90 : 79,202.50 = 31,900.61 : x
  2. Step 2: Convert to fraction form
    57,395.90/79,202.50 = 31,900.61/x
  3. Step 3: Cross multiply
    57,395.90x = 79,202.50 × 31,900.61
  4. Step 4: Simplify right side
    57,395.90x = 2,526,608,181.78
  5. Step 5: Solve for x
    x = 2,526,608,181.78/57,395.90
  6. Step 6: Final answer
    x = 44,020.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.