Finding the Fourth Proportional to 75,994.10, 104,871.96 and 43,728.08
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Solution
The fourth proportional to 75,994.10, 104,871.96 and 43,728.08 is: 60,344.80
Step by Step Solution
- Step 1: Write the proportion equation
75,994.10 : 104,871.96 = 43,728.08 : x - Step 2: Convert to fraction form
75,994.10/104,871.96 = 43,728.08/x - Step 3: Cross multiply
75,994.10x = 104,871.96 × 43,728.08 - Step 4: Simplify right side
75,994.10x = 4,585,848,713.64 - Step 5: Solve for x
x = 4,585,848,713.64/75,994.10 - Step 6: Final answer
x = 60,344.80
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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.