Finding the Fourth Proportional to 84,738.24, 126,952.44 and 39,676.92
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Solution
The fourth proportional to 84,738.24, 126,952.44 and 39,676.92 is: 59,442.84
Step by Step Solution
- Step 1: Write the proportion equation
84,738.24 : 126,952.44 = 39,676.92 : x - Step 2: Convert to fraction form
84,738.24/126,952.44 = 39,676.92/x - Step 3: Cross multiply
84,738.24x = 126,952.44 × 39,676.92 - Step 4: Simplify right side
84,738.24x = 5,037,081,805.68 - Step 5: Solve for x
x = 5,037,081,805.68/84,738.24 - Step 6: Final answer
x = 59,442.84
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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.