Finding the Fourth Proportional to 73,231.20, 109,603.80 and 53,183.70
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Solution
The fourth proportional to 73,231.20, 109,603.80 and 53,183.70 is: 79,599.07
Step by Step Solution
- Step 1: Write the proportion equation
73,231.20 : 109,603.80 = 53,183.70 : x - Step 2: Convert to fraction form
73,231.20/109,603.80 = 53,183.70/x - Step 3: Cross multiply
73,231.20x = 109,603.80 × 53,183.70 - Step 4: Simplify right side
73,231.20x = 5,829,135,618.06 - Step 5: Solve for x
x = 5,829,135,618.06/73,231.20 - Step 6: Final answer
x = 79,599.07
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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.