Finding the Fourth Proportional to 86,537.09, 129,812.93 and 27,371.45
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Solution
The fourth proportional to 86,537.09, 129,812.93 and 27,371.45 is: 41,059.48
Step by Step Solution
- Step 1: Write the proportion equation
86,537.09 : 129,812.93 = 27,371.45 : x - Step 2: Convert to fraction form
86,537.09/129,812.93 = 27,371.45/x - Step 3: Cross multiply
86,537.09x = 129,812.93 × 27,371.45 - Step 4: Simplify right side
86,537.09x = 3,553,167,336.93 - Step 5: Solve for x
x = 3,553,167,336.93/86,537.09 - Step 6: Final answer
x = 41,059.48
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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.