Finding the Fourth Proportional to 76,884.88, 115,288.44 and 39,436.96
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Solution
The fourth proportional to 76,884.88, 115,288.44 and 39,436.96 is: 59,135.50
Step by Step Solution
- Step 1: Write the proportion equation
76,884.88 : 115,288.44 = 39,436.96 : x - Step 2: Convert to fraction form
76,884.88/115,288.44 = 39,436.96/x - Step 3: Cross multiply
76,884.88x = 115,288.44 × 39,436.96 - Step 4: Simplify right side
76,884.88x = 4,546,625,596.74 - Step 5: Solve for x
x = 4,546,625,596.74/76,884.88 - Step 6: Final answer
x = 59,135.50
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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.