Finding the Fourth Proportional to 75,979.06, 113,973.44 and 29,231.92
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Solution
The fourth proportional to 75,979.06, 113,973.44 and 29,231.92 is: 43,849.75
Step by Step Solution
- Step 1: Write the proportion equation
75,979.06 : 113,973.44 = 29,231.92 : x - Step 2: Convert to fraction form
75,979.06/113,973.44 = 29,231.92/x - Step 3: Cross multiply
75,979.06x = 113,973.44 × 29,231.92 - Step 4: Simplify right side
75,979.06x = 3,331,662,480.20 - Step 5: Solve for x
x = 3,331,662,480.20/75,979.06 - Step 6: Final answer
x = 43,849.75
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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.