Home / 87,749.19-131,640.19-35,162.78

Finding the Fourth Proportional to 87,749.19, 131,640.19 and 35,162.78

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Solution

The fourth proportional to 87,749.19, 131,640.19 and 35,162.78 is: 52,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,749.19 : 131,640.19 = 35,162.78 : x
  2. Step 2: Convert to fraction form
    87,749.19/131,640.19 = 35,162.78/x
  3. Step 3: Cross multiply
    87,749.19x = 131,640.19 × 35,162.78
  4. Step 4: Simplify right side
    87,749.19x = 4,628,834,381.93
  5. Step 5: Solve for x
    x = 4,628,834,381.93/87,749.19
  6. Step 6: Final answer
    x = 52,750.74

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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.