Finding the Fourth Proportional to 91,052.48, 136,578.54 and 28,727.84
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Solution
The fourth proportional to 91,052.48, 136,578.54 and 28,727.84 is: 43,091.70
Step by Step Solution
- Step 1: Write the proportion equation
91,052.48 : 136,578.54 = 28,727.84 : x - Step 2: Convert to fraction form
91,052.48/136,578.54 = 28,727.84/x - Step 3: Cross multiply
91,052.48x = 136,578.54 × 28,727.84 - Step 4: Simplify right side
91,052.48x = 3,923,606,444.55 - Step 5: Solve for x
x = 3,923,606,444.55/91,052.48 - Step 6: Final answer
x = 43,091.70
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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.