Finding the Fourth Proportional to 80,763.36, 121,161.12 and 30,841.44
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Solution
The fourth proportional to 80,763.36, 121,161.12 and 30,841.44 is: 46,268.30
Step by Step Solution
- Step 1: Write the proportion equation
80,763.36 : 121,161.12 = 30,841.44 : x - Step 2: Convert to fraction form
80,763.36/121,161.12 = 30,841.44/x - Step 3: Cross multiply
80,763.36x = 121,161.12 × 30,841.44 - Step 4: Simplify right side
80,763.36x = 3,736,783,412.81 - Step 5: Solve for x
x = 3,736,783,412.81/80,763.36 - Step 6: Final answer
x = 46,268.30
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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.