Home / 57,991.14-87,020.19-31,337.21

Finding the Fourth Proportional to 57,991.14, 87,020.19 and 31,337.21

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Solution

The fourth proportional to 57,991.14, 87,020.19 and 31,337.21 is: 47,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,991.14 : 87,020.19 = 31,337.21 : x
  2. Step 2: Convert to fraction form
    57,991.14/87,020.19 = 31,337.21/x
  3. Step 3: Cross multiply
    57,991.14x = 87,020.19 × 31,337.21
  4. Step 4: Simplify right side
    57,991.14x = 2,726,970,185.82
  5. Step 5: Solve for x
    x = 2,726,970,185.82/57,991.14
  6. Step 6: Final answer
    x = 47,023.91

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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.