Finding the Fourth Proportional to 81,968.62, 122,886.63 and 34,553.09
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Solution
The fourth proportional to 81,968.62, 122,886.63 and 34,553.09 is: 51,801.69
Step by Step Solution
- Step 1: Write the proportion equation
81,968.62 : 122,886.63 = 34,553.09 : x - Step 2: Convert to fraction form
81,968.62/122,886.63 = 34,553.09/x - Step 3: Cross multiply
81,968.62x = 122,886.63 × 34,553.09 - Step 4: Simplify right side
81,968.62x = 4,246,113,093.40 - Step 5: Solve for x
x = 4,246,113,093.40/81,968.62 - Step 6: Final answer
x = 51,801.69
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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.