Finding the Fourth Proportional to 84,042.35, 115,979.00 and 48,231.44
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Solution
The fourth proportional to 84,042.35, 115,979.00 and 48,231.44 is: 66,559.70
Step by Step Solution
- Step 1: Write the proportion equation
84,042.35 : 115,979.00 = 48,231.44 : x - Step 2: Convert to fraction form
84,042.35/115,979.00 = 48,231.44/x - Step 3: Cross multiply
84,042.35x = 115,979.00 × 48,231.44 - Step 4: Simplify right side
84,042.35x = 5,593,833,358.71 - Step 5: Solve for x
x = 5,593,833,358.71/84,042.35 - Step 6: Final answer
x = 66,559.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.