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Finding the Fourth Proportional to 75,811.45, 113,624.93 and 53,631.22

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Solution

The fourth proportional to 75,811.45, 113,624.93 and 53,631.22 is: 80,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,811.45 : 113,624.93 = 53,631.22 : x
  2. Step 2: Convert to fraction form
    75,811.45/113,624.93 = 53,631.22/x
  3. Step 3: Cross multiply
    75,811.45x = 113,624.93 × 53,631.22
  4. Step 4: Simplify right side
    75,811.45x = 6,093,843,618.31
  5. Step 5: Solve for x
    x = 6,093,843,618.31/75,811.45
  6. Step 6: Final answer
    x = 80,381.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.