Finding the Fourth Proportional to 84,001.92, 115,939.44 and 48,216.12
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Solution
The fourth proportional to 84,001.92, 115,939.44 and 48,216.12 is: 66,547.88
Step by Step Solution
- Step 1: Write the proportion equation
84,001.92 : 115,939.44 = 48,216.12 : x - Step 2: Convert to fraction form
84,001.92/115,939.44 = 48,216.12/x - Step 3: Cross multiply
84,001.92x = 115,939.44 × 48,216.12 - Step 4: Simplify right side
84,001.92x = 5,590,149,951.77 - Step 5: Solve for x
x = 5,590,149,951.77/84,001.92 - Step 6: Final answer
x = 66,547.88
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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.