Finding the Fourth Proportional to 88,379.12, 121,960.74 and 48,091.94
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Solution
The fourth proportional to 88,379.12, 121,960.74 and 48,091.94 is: 66,365.55
Step by Step Solution
- Step 1: Write the proportion equation
88,379.12 : 121,960.74 = 48,091.94 : x - Step 2: Convert to fraction form
88,379.12/121,960.74 = 48,091.94/x - Step 3: Cross multiply
88,379.12x = 121,960.74 × 48,091.94 - Step 4: Simplify right side
88,379.12x = 5,865,328,590.44 - Step 5: Solve for x
x = 5,865,328,590.44/88,379.12 - Step 6: Final answer
x = 66,365.55
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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.