Finding the Fourth Proportional to 76,959.04, 115,435.84 and 29,561.92
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Solution
The fourth proportional to 76,959.04, 115,435.84 and 29,561.92 is: 44,341.84
Step by Step Solution
- Step 1: Write the proportion equation
76,959.04 : 115,435.84 = 29,561.92 : x - Step 2: Convert to fraction form
76,959.04/115,435.84 = 29,561.92/x - Step 3: Cross multiply
76,959.04x = 115,435.84 × 29,561.92 - Step 4: Simplify right side
76,959.04x = 3,412,505,067.21 - Step 5: Solve for x
x = 3,412,505,067.21/76,959.04 - Step 6: Final answer
x = 44,341.84
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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.