Finding the Fourth Proportional to 81,269.48, 121,873.84 and 27,946.36
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Solution
The fourth proportional to 81,269.48, 121,873.84 and 27,946.36 is: 41,909.09
Step by Step Solution
- Step 1: Write the proportion equation
81,269.48 : 121,873.84 = 27,946.36 : x - Step 2: Convert to fraction form
81,269.48/121,873.84 = 27,946.36/x - Step 3: Cross multiply
81,269.48x = 121,873.84 × 27,946.36 - Step 4: Simplify right side
81,269.48x = 3,405,930,207.22 - Step 5: Solve for x
x = 3,405,930,207.22/81,269.48 - Step 6: Final answer
x = 41,909.09
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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.