Finding the Fourth Proportional to 87,658.24, 120,961.08 and 48,893.66
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Solution
The fourth proportional to 87,658.24, 120,961.08 and 48,893.66 is: 67,469.18
Step by Step Solution
- Step 1: Write the proportion equation
87,658.24 : 120,961.08 = 48,893.66 : x - Step 2: Convert to fraction form
87,658.24/120,961.08 = 48,893.66/x - Step 3: Cross multiply
87,658.24x = 120,961.08 × 48,893.66 - Step 4: Simplify right side
87,658.24x = 5,914,229,918.75 - Step 5: Solve for x
x = 5,914,229,918.75/87,658.24 - Step 6: Final answer
x = 67,469.18
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1.5x scale
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.