Home / 87,912.84-131,822.79-40,486.53

Finding the Fourth Proportional to 87,912.84, 131,822.79 and 40,486.53

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Solution

The fourth proportional to 87,912.84, 131,822.79 and 40,486.53 is: 60,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,912.84 : 131,822.79 = 40,486.53 : x
  2. Step 2: Convert to fraction form
    87,912.84/131,822.79 = 40,486.53/x
  3. Step 3: Cross multiply
    87,912.84x = 131,822.79 × 40,486.53
  4. Step 4: Simplify right side
    87,912.84x = 5,337,047,912.27
  5. Step 5: Solve for x
    x = 5,337,047,912.27/87,912.84
  6. Step 6: Final answer
    x = 60,708.40

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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.