Home / 87,907.23-131,868.95-28,743.21

Finding the Fourth Proportional to 87,907.23, 131,868.95 and 28,743.21

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Solution

The fourth proportional to 87,907.23, 131,868.95 and 28,743.21 is: 43,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,907.23 : 131,868.95 = 28,743.21 : x
  2. Step 2: Convert to fraction form
    87,907.23/131,868.95 = 28,743.21/x
  3. Step 3: Cross multiply
    87,907.23x = 131,868.95 × 28,743.21
  4. Step 4: Simplify right side
    87,907.23x = 3,790,336,778.61
  5. Step 5: Solve for x
    x = 3,790,336,778.61/87,907.23
  6. Step 6: Final answer
    x = 43,117.46

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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.