Finding the Fourth Proportional to 86,580.21, 129,771.98 and 36,629.13
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Solution
The fourth proportional to 86,580.21, 129,771.98 and 36,629.13 is: 54,902.09
Step by Step Solution
- Step 1: Write the proportion equation
86,580.21 : 129,771.98 = 36,629.13 : x - Step 2: Convert to fraction form
86,580.21/129,771.98 = 36,629.13/x - Step 3: Cross multiply
86,580.21x = 129,771.98 × 36,629.13 - Step 4: Simplify right side
86,580.21x = 4,753,434,542.63 - Step 5: Solve for x
x = 4,753,434,542.63/86,580.21 - Step 6: Final answer
x = 54,902.09
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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.