Home / 55,285.40-82,862.46-31,863.44

Finding the Fourth Proportional to 55,285.40, 82,862.46 and 31,863.44

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Solution

The fourth proportional to 55,285.40, 82,862.46 and 31,863.44 is: 47,757.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,285.40 : 82,862.46 = 31,863.44 : x
  2. Step 2: Convert to fraction form
    55,285.40/82,862.46 = 31,863.44/x
  3. Step 3: Cross multiply
    55,285.40x = 82,862.46 × 31,863.44
  4. Step 4: Simplify right side
    55,285.40x = 2,640,282,608.15
  5. Step 5: Solve for x
    x = 2,640,282,608.15/55,285.40
  6. Step 6: Final answer
    x = 47,757.33

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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.