Finding the Fourth Proportional to 80,646.68, 120,979.74 and 33,893.48
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Solution
The fourth proportional to 80,646.68, 120,979.74 and 33,893.48 is: 50,844.31
Step by Step Solution
- Step 1: Write the proportion equation
80,646.68 : 120,979.74 = 33,893.48 : x - Step 2: Convert to fraction form
80,646.68/120,979.74 = 33,893.48/x - Step 3: Cross multiply
80,646.68x = 120,979.74 × 33,893.48 - Step 4: Simplify right side
80,646.68x = 4,100,424,398.10 - Step 5: Solve for x
x = 4,100,424,398.10/80,646.68 - Step 6: Final answer
x = 50,844.31
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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.