Finding the Fourth Proportional to 86,223.15, 118,991.84 and 48,497.40
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Solution
The fourth proportional to 86,223.15, 118,991.84 and 48,497.40 is: 66,928.60
Step by Step Solution
- Step 1: Write the proportion equation
86,223.15 : 118,991.84 = 48,497.40 : x - Step 2: Convert to fraction form
86,223.15/118,991.84 = 48,497.40/x - Step 3: Cross multiply
86,223.15x = 118,991.84 × 48,497.40 - Step 4: Simplify right side
86,223.15x = 5,770,794,861.22 - Step 5: Solve for x
x = 5,770,794,861.22/86,223.15 - Step 6: Final answer
x = 66,928.60
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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.