Home / 87,522.60-131,442.30-76,636.20

Finding the Fourth Proportional to 87,522.60, 131,442.30 and 76,636.20

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Solution

The fourth proportional to 87,522.60, 131,442.30 and 76,636.20 is: 115,093.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,522.60 : 131,442.30 = 76,636.20 : x
  2. Step 2: Convert to fraction form
    87,522.60/131,442.30 = 76,636.20/x
  3. Step 3: Cross multiply
    87,522.60x = 131,442.30 × 76,636.20
  4. Step 4: Simplify right side
    87,522.60x = 10,073,238,391.26
  5. Step 5: Solve for x
    x = 10,073,238,391.26/87,522.60
  6. Step 6: Final answer
    x = 115,093.00

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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.