Home / 57,714.40-86,604.24-31,420.96

Finding the Fourth Proportional to 57,714.40, 86,604.24 and 31,420.96

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Solution

The fourth proportional to 57,714.40, 86,604.24 and 31,420.96 is: 47,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,714.40 : 86,604.24 = 31,420.96 : x
  2. Step 2: Convert to fraction form
    57,714.40/86,604.24 = 31,420.96/x
  3. Step 3: Cross multiply
    57,714.40x = 86,604.24 × 31,420.96
  4. Step 4: Simplify right side
    57,714.40x = 2,721,188,360.87
  5. Step 5: Solve for x
    x = 2,721,188,360.87/57,714.40
  6. Step 6: Final answer
    x = 47,149.21

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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.