Finding the Fourth Proportional to 73,768.26, 110,652.45 and 31,620.99
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Solution
The fourth proportional to 73,768.26, 110,652.45 and 31,620.99 is: 47,431.51
Step by Step Solution
- Step 1: Write the proportion equation
73,768.26 : 110,652.45 = 31,620.99 : x - Step 2: Convert to fraction form
73,768.26/110,652.45 = 31,620.99/x - Step 3: Cross multiply
73,768.26x = 110,652.45 × 31,620.99 - Step 4: Simplify right side
73,768.26x = 3,498,940,014.93 - Step 5: Solve for x
x = 3,498,940,014.93/73,768.26 - Step 6: Final answer
x = 47,431.51
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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.