Finding the Fourth Proportional to 80,239.87, 110,734.82 and 48,408.09
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Solution
The fourth proportional to 80,239.87, 110,734.82 and 48,408.09 is: 66,805.46
Step by Step Solution
- Step 1: Write the proportion equation
80,239.87 : 110,734.82 = 48,408.09 : x - Step 2: Convert to fraction form
80,239.87/110,734.82 = 48,408.09/x - Step 3: Cross multiply
80,239.87x = 110,734.82 × 48,408.09 - Step 4: Simplify right side
80,239.87x = 5,360,461,132.69 - Step 5: Solve for x
x = 5,360,461,132.69/80,239.87 - Step 6: Final answer
x = 66,805.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.