Finding the Fourth Proportional to 76,431.09, 105,474.91 and 44,593.84
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Solution
The fourth proportional to 76,431.09, 105,474.91 and 44,593.84 is: 61,539.50
Step by Step Solution
- Step 1: Write the proportion equation
76,431.09 : 105,474.91 = 44,593.84 : x - Step 2: Convert to fraction form
76,431.09/105,474.91 = 44,593.84/x - Step 3: Cross multiply
76,431.09x = 105,474.91 × 44,593.84 - Step 4: Simplify right side
76,431.09x = 4,703,531,364.53 - Step 5: Solve for x
x = 4,703,531,364.53/76,431.09 - Step 6: Final answer
x = 61,539.50
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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.