Home / 87,915.84-131,889.96-28,754.82

Finding the Fourth Proportional to 87,915.84, 131,889.96 and 28,754.82

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Solution

The fourth proportional to 87,915.84, 131,889.96 and 28,754.82 is: 43,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,915.84 : 131,889.96 = 28,754.82 : x
  2. Step 2: Convert to fraction form
    87,915.84/131,889.96 = 28,754.82/x
  3. Step 3: Cross multiply
    87,915.84x = 131,889.96 × 28,754.82
  4. Step 4: Simplify right side
    87,915.84x = 3,792,472,059.61
  5. Step 5: Solve for x
    x = 3,792,472,059.61/87,915.84
  6. Step 6: Final answer
    x = 43,137.53

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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.