Finding the Fourth Proportional to 80,484.18, 120,747.74 and 27,893.62
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Solution
The fourth proportional to 80,484.18, 120,747.74 and 27,893.62 is: 41,847.87
Step by Step Solution
- Step 1: Write the proportion equation
80,484.18 : 120,747.74 = 27,893.62 : x - Step 2: Convert to fraction form
80,484.18/120,747.74 = 27,893.62/x - Step 3: Cross multiply
80,484.18x = 120,747.74 × 27,893.62 - Step 4: Simplify right side
80,484.18x = 3,368,091,575.42 - Step 5: Solve for x
x = 3,368,091,575.42/80,484.18 - Step 6: Final answer
x = 41,847.87
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1.5x scale
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.