Home / 87,858.98-131,768.71-40,428.57

Finding the Fourth Proportional to 87,858.98, 131,768.71 and 40,428.57

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Solution

The fourth proportional to 87,858.98, 131,768.71 and 40,428.57 is: 60,633.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,858.98 : 131,768.71 = 40,428.57 : x
  2. Step 2: Convert to fraction form
    87,858.98/131,768.71 = 40,428.57/x
  3. Step 3: Cross multiply
    87,858.98x = 131,768.71 × 40,428.57
  4. Step 4: Simplify right side
    87,858.98x = 5,327,220,516.04
  5. Step 5: Solve for x
    x = 5,327,220,516.04/87,858.98
  6. Step 6: Final answer
    x = 60,633.76

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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.