Home / 57,396.90-79,207.21-31,902.61

Finding the Fourth Proportional to 57,396.90, 79,207.21 and 31,902.61

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Solution

The fourth proportional to 57,396.90, 79,207.21 and 31,902.61 is: 44,025.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,396.90 : 79,207.21 = 31,902.61 : x
  2. Step 2: Convert to fraction form
    57,396.90/79,207.21 = 31,902.61/x
  3. Step 3: Cross multiply
    57,396.90x = 79,207.21 × 31,902.61
  4. Step 4: Simplify right side
    57,396.90x = 2,526,916,729.82
  5. Step 5: Solve for x
    x = 2,526,916,729.82/57,396.90
  6. Step 6: Final answer
    x = 44,025.32

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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.