Finding the Fourth Proportional to 88,975.93, 122,786.79 and 48,689.70
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Solution
The fourth proportional to 88,975.93, 122,786.79 and 48,689.70 is: 67,191.79
Step by Step Solution
- Step 1: Write the proportion equation
88,975.93 : 122,786.79 = 48,689.70 : x - Step 2: Convert to fraction form
88,975.93/122,786.79 = 48,689.70/x - Step 3: Cross multiply
88,975.93x = 122,786.79 × 48,689.70 - Step 4: Simplify right side
88,975.93x = 5,978,451,830.13 - Step 5: Solve for x
x = 5,978,451,830.13/88,975.93 - Step 6: Final answer
x = 67,191.79
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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.