Finding the Fourth Proportional to 87,347.84, 120,539.97 and 49,622.09
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Solution
The fourth proportional to 87,347.84, 120,539.97 and 49,622.09 is: 68,478.45
Step by Step Solution
- Step 1: Write the proportion equation
87,347.84 : 120,539.97 = 49,622.09 : x - Step 2: Convert to fraction form
87,347.84/120,539.97 = 49,622.09/x - Step 3: Cross multiply
87,347.84x = 120,539.97 × 49,622.09 - Step 4: Simplify right side
87,347.84x = 5,981,444,637.24 - Step 5: Solve for x
x = 5,981,444,637.24/87,347.84 - Step 6: Final answer
x = 68,478.45
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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.