Finding the Fourth Proportional to 87,099.84, 120,211.20 and 49,366.08
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Solution
The fourth proportional to 87,099.84, 120,211.20 and 49,366.08 is: 68,132.80
Step by Step Solution
- Step 1: Write the proportion equation
87,099.84 : 120,211.20 = 49,366.08 : x - Step 2: Convert to fraction form
87,099.84/120,211.20 = 49,366.08/x - Step 3: Cross multiply
87,099.84x = 120,211.20 × 49,366.08 - Step 4: Simplify right side
87,099.84x = 5,934,355,716.10 - Step 5: Solve for x
x = 5,934,355,716.10/87,099.84 - Step 6: Final answer
x = 68,132.80
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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.