Home / 51,989.24-71,745.10-28,115.86

Finding the Fourth Proportional to 51,989.24, 71,745.10 and 28,115.86

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Solution

The fourth proportional to 51,989.24, 71,745.10 and 28,115.86 is: 38,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989.24 : 71,745.10 = 28,115.86 : x
  2. Step 2: Convert to fraction form
    51,989.24/71,745.10 = 28,115.86/x
  3. Step 3: Cross multiply
    51,989.24x = 71,745.10 × 28,115.86
  4. Step 4: Simplify right side
    51,989.24x = 2,017,175,269.85
  5. Step 5: Solve for x
    x = 2,017,175,269.85/51,989.24
  6. Step 6: Final answer
    x = 38,799.86

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1.5x scale

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.