Home / 87,795.94-131,436.86-54,415.30

Finding the Fourth Proportional to 87,795.94, 131,436.86 and 54,415.30

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Solution

The fourth proportional to 87,795.94, 131,436.86 and 54,415.30 is: 81,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,795.94 : 131,436.86 = 54,415.30 : x
  2. Step 2: Convert to fraction form
    87,795.94/131,436.86 = 54,415.30/x
  3. Step 3: Cross multiply
    87,795.94x = 131,436.86 × 54,415.30
  4. Step 4: Simplify right side
    87,795.94x = 7,152,176,167.96
  5. Step 5: Solve for x
    x = 7,152,176,167.96/87,795.94
  6. Step 6: Final answer
    x = 81,463.63

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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.