Finding the Fourth Proportional to 99,845.68, 137,787.36 and 54,524.08
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Solution
The fourth proportional to 99,845.68, 137,787.36 and 54,524.08 is: 75,243.41
Step by Step Solution
- Step 1: Write the proportion equation
99,845.68 : 137,787.36 = 54,524.08 : x - Step 2: Convert to fraction form
99,845.68/137,787.36 = 54,524.08/x - Step 3: Cross multiply
99,845.68x = 137,787.36 × 54,524.08 - Step 4: Simplify right side
99,845.68x = 7,512,729,039.63 - Step 5: Solve for x
x = 7,512,729,039.63/99,845.68 - Step 6: Final answer
x = 75,243.41
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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.