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Finding the Fourth Proportional to 75,633.40, 113,450.10 and 31,245.40

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Solution

The fourth proportional to 75,633.40, 113,450.10 and 31,245.40 is: 46,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,633.40 : 113,450.10 = 31,245.40 : x
  2. Step 2: Convert to fraction form
    75,633.40/113,450.10 = 31,245.40/x
  3. Step 3: Cross multiply
    75,633.40x = 113,450.10 × 31,245.40
  4. Step 4: Simplify right side
    75,633.40x = 3,544,793,754.54
  5. Step 5: Solve for x
    x = 3,544,793,754.54/75,633.40
  6. Step 6: Final answer
    x = 46,868.10

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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.