Finding the Fourth Proportional to 79,861.19, 119,865.56 and 40,445.98
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Solution
The fourth proportional to 79,861.19, 119,865.56 and 40,445.98 is: 60,706.33
Step by Step Solution
- Step 1: Write the proportion equation
79,861.19 : 119,865.56 = 40,445.98 : x - Step 2: Convert to fraction form
79,861.19/119,865.56 = 40,445.98/x - Step 3: Cross multiply
79,861.19x = 119,865.56 × 40,445.98 - Step 4: Simplify right side
79,861.19x = 4,848,079,540.56 - Step 5: Solve for x
x = 4,848,079,540.56/79,861.19 - Step 6: Final answer
x = 60,706.33
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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.