Finding the Fourth Proportional to 84,609.40, 126,901.80 and 22,279.84
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Solution
The fourth proportional to 84,609.40, 126,901.80 and 22,279.84 is: 33,416.52
Step by Step Solution
- Step 1: Write the proportion equation
84,609.40 : 126,901.80 = 22,279.84 : x - Step 2: Convert to fraction form
84,609.40/126,901.80 = 22,279.84/x - Step 3: Cross multiply
84,609.40x = 126,901.80 × 22,279.84 - Step 4: Simplify right side
84,609.40x = 2,827,351,799.71 - Step 5: Solve for x
x = 2,827,351,799.71/84,609.40 - Step 6: Final answer
x = 33,416.52
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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.