Home / 57,029.92-78,701.14-31,188.48

Finding the Fourth Proportional to 57,029.92, 78,701.14 and 31,188.48

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Solution

The fourth proportional to 57,029.92, 78,701.14 and 31,188.48 is: 43,040.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,029.92 : 78,701.14 = 31,188.48 : x
  2. Step 2: Convert to fraction form
    57,029.92/78,701.14 = 31,188.48/x
  3. Step 3: Cross multiply
    57,029.92x = 78,701.14 × 31,188.48
  4. Step 4: Simplify right side
    57,029.92x = 2,454,568,930.87
  5. Step 5: Solve for x
    x = 2,454,568,930.87/57,029.92
  6. Step 6: Final answer
    x = 43,040.02

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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.