Home / 87,586.64-131,399.14-28,428.26

Finding the Fourth Proportional to 87,586.64, 131,399.14 and 28,428.26

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Solution

The fourth proportional to 87,586.64, 131,399.14 and 28,428.26 is: 42,648.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,586.64 : 131,399.14 = 28,428.26 : x
  2. Step 2: Convert to fraction form
    87,586.64/131,399.14 = 28,428.26/x
  3. Step 3: Cross multiply
    87,586.64x = 131,399.14 × 28,428.26
  4. Step 4: Simplify right side
    87,586.64x = 3,735,448,915.70
  5. Step 5: Solve for x
    x = 3,735,448,915.70/87,586.64
  6. Step 6: Final answer
    x = 42,648.62

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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.