Finding the Fourth Proportional to 89,042.36, 122,821.68 and 62,175.05
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Solution
The fourth proportional to 89,042.36, 122,821.68 and 62,175.05 is: 85,761.92
Step by Step Solution
- Step 1: Write the proportion equation
89,042.36 : 122,821.68 = 62,175.05 : x - Step 2: Convert to fraction form
89,042.36/122,821.68 = 62,175.05/x - Step 3: Cross multiply
89,042.36x = 122,821.68 × 62,175.05 - Step 4: Simplify right side
89,042.36x = 7,636,444,095.08 - Step 5: Solve for x
x = 7,636,444,095.08/89,042.36 - Step 6: Final answer
x = 85,761.92
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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.