Finding the Fourth Proportional to 76,694.44, 105,835.70 and 43,153.96
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Solution
The fourth proportional to 76,694.44, 105,835.70 and 43,153.96 is: 59,550.99
Step by Step Solution
- Step 1: Write the proportion equation
76,694.44 : 105,835.70 = 43,153.96 : x - Step 2: Convert to fraction form
76,694.44/105,835.70 = 43,153.96/x - Step 3: Cross multiply
76,694.44x = 105,835.70 × 43,153.96 - Step 4: Simplify right side
76,694.44x = 4,567,229,564.37 - Step 5: Solve for x
x = 4,567,229,564.37/76,694.44 - Step 6: Final answer
x = 59,550.99
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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.