Home / 87,635.92-131,532-40,915.12

Finding the Fourth Proportional to 87,635.92, 131,532 and 40,915.12

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Solution

The fourth proportional to 87,635.92, 131,532 and 40,915.12 is: 61,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635.92 : 131,532 = 40,915.12 : x
  2. Step 2: Convert to fraction form
    87,635.92/131,532 = 40,915.12/x
  3. Step 3: Cross multiply
    87,635.92x = 131,532 × 40,915.12
  4. Step 4: Simplify right side
    87,635.92x = 5,381,647,563.84
  5. Step 5: Solve for x
    x = 5,381,647,563.84/87,635.92
  6. Step 6: Final answer
    x = 61,409.15

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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.