Home / 75,811.88-113,625.57-53,631.65

Finding the Fourth Proportional to 75,811.88, 113,625.57 and 53,631.65

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Solution

The fourth proportional to 75,811.88, 113,625.57 and 53,631.65 is: 80,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,811.88 : 113,625.57 = 53,631.65 : x
  2. Step 2: Convert to fraction form
    75,811.88/113,625.57 = 53,631.65/x
  3. Step 3: Cross multiply
    75,811.88x = 113,625.57 × 53,631.65
  4. Step 4: Simplify right side
    75,811.88x = 6,093,926,801.29
  5. Step 5: Solve for x
    x = 6,093,926,801.29/75,811.88
  6. Step 6: Final answer
    x = 80,382.21

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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.