Finding the Fourth Proportional to 76,744.82, 114,904.64 and 39,224.09
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Solution
The fourth proportional to 76,744.82, 114,904.64 and 39,224.09 is: 58,727.47
Step by Step Solution
- Step 1: Write the proportion equation
76,744.82 : 114,904.64 = 39,224.09 : x - Step 2: Convert to fraction form
76,744.82/114,904.64 = 39,224.09/x - Step 3: Cross multiply
76,744.82x = 114,904.64 × 39,224.09 - Step 4: Simplify right side
76,744.82x = 4,507,029,170.13 - Step 5: Solve for x
x = 4,507,029,170.13/76,744.82 - Step 6: Final answer
x = 58,727.47
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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.