Finding the Fourth Proportional to 90,323.52, 135,504.09 and 27,141.09
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Solution
The fourth proportional to 90,323.52, 135,504.09 and 27,141.09 is: 40,717.29
Step by Step Solution
- Step 1: Write the proportion equation
90,323.52 : 135,504.09 = 27,141.09 : x - Step 2: Convert to fraction form
90,323.52/135,504.09 = 27,141.09/x - Step 3: Cross multiply
90,323.52x = 135,504.09 × 27,141.09 - Step 4: Simplify right side
90,323.52x = 3,677,728,702.06 - Step 5: Solve for x
x = 3,677,728,702.06/90,323.52 - Step 6: Final answer
x = 40,717.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.