Home / 57,745.20-86,574.60-31,479.60

Finding the Fourth Proportional to 57,745.20, 86,574.60 and 31,479.60

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Solution

The fourth proportional to 57,745.20, 86,574.60 and 31,479.60 is: 47,195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745.20 : 86,574.60 = 31,479.60 : x
  2. Step 2: Convert to fraction form
    57,745.20/86,574.60 = 31,479.60/x
  3. Step 3: Cross multiply
    57,745.20x = 86,574.60 × 31,479.60
  4. Step 4: Simplify right side
    57,745.20x = 2,725,333,778.16
  5. Step 5: Solve for x
    x = 2,725,333,778.16/57,745.20
  6. Step 6: Final answer
    x = 47,195.85

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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.