Home / 87,971.35-131,957.01-76,089.81

Finding the Fourth Proportional to 87,971.35, 131,957.01 and 76,089.81

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Solution

The fourth proportional to 87,971.35, 131,957.01 and 76,089.81 is: 114,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,971.35 : 131,957.01 = 76,089.81 : x
  2. Step 2: Convert to fraction form
    87,971.35/131,957.01 = 76,089.81/x
  3. Step 3: Cross multiply
    87,971.35x = 131,957.01 × 76,089.81
  4. Step 4: Simplify right side
    87,971.35x = 10,040,583,819.07
  5. Step 5: Solve for x
    x = 10,040,583,819.07/87,971.35
  6. Step 6: Final answer
    x = 114,134.70

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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.