Finding the Fourth Proportional to 89,012.09, 122,838.12 and 48,725.15
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Solution
The fourth proportional to 89,012.09, 122,838.12 and 48,725.15 is: 67,241.50
Step by Step Solution
- Step 1: Write the proportion equation
89,012.09 : 122,838.12 = 48,725.15 : x - Step 2: Convert to fraction form
89,012.09/122,838.12 = 48,725.15/x - Step 3: Cross multiply
89,012.09x = 122,838.12 × 48,725.15 - Step 4: Simplify right side
89,012.09x = 5,985,306,244.97 - Step 5: Solve for x
x = 5,985,306,244.97/89,012.09 - Step 6: Final answer
x = 67,241.50
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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.