Finding the Fourth Proportional to 98,233.72, 135,578.92 and 57,957.48
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Solution
The fourth proportional to 98,233.72, 135,578.92 and 57,957.48 is: 79,990.99
Step by Step Solution
- Step 1: Write the proportion equation
98,233.72 : 135,578.92 = 57,957.48 : x - Step 2: Convert to fraction form
98,233.72/135,578.92 = 57,957.48/x - Step 3: Cross multiply
98,233.72x = 135,578.92 × 57,957.48 - Step 4: Simplify right side
98,233.72x = 7,857,812,544.32 - Step 5: Solve for x
x = 7,857,812,544.32/98,233.72 - Step 6: Final answer
x = 79,990.99
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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.