Finding the Fourth Proportional to 89,999.78, 124,207.37 and 49,717.94
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Solution
The fourth proportional to 89,999.78, 124,207.37 and 49,717.94 is: 68,614.99
Step by Step Solution
- Step 1: Write the proportion equation
89,999.78 : 124,207.37 = 49,717.94 : x - Step 2: Convert to fraction form
89,999.78/124,207.37 = 49,717.94/x - Step 3: Cross multiply
89,999.78x = 124,207.37 × 49,717.94 - Step 4: Simplify right side
89,999.78x = 6,175,333,699.59 - Step 5: Solve for x
x = 6,175,333,699.59/89,999.78 - Step 6: Final answer
x = 68,614.99
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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.