Finding the Fourth Proportional to 80,286.57, 110,792.21 and 44,478.09
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Solution
The fourth proportional to 80,286.57, 110,792.21 and 44,478.09 is: 61,377.96
Step by Step Solution
- Step 1: Write the proportion equation
80,286.57 : 110,792.21 = 44,478.09 : x - Step 2: Convert to fraction form
80,286.57/110,792.21 = 44,478.09/x - Step 3: Cross multiply
80,286.57x = 110,792.21 × 44,478.09 - Step 4: Simplify right side
80,286.57x = 4,927,825,665.29 - Step 5: Solve for x
x = 4,927,825,665.29/80,286.57 - Step 6: Final answer
x = 61,377.96
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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.