Finding the Fourth Proportional to 86,540.05, 129,814.80 and 27,371.31
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Solution
The fourth proportional to 86,540.05, 129,814.80 and 27,371.31 is: 41,058.46
Step by Step Solution
- Step 1: Write the proportion equation
86,540.05 : 129,814.80 = 27,371.31 : x - Step 2: Convert to fraction form
86,540.05/129,814.80 = 27,371.31/x - Step 3: Cross multiply
86,540.05x = 129,814.80 × 27,371.31 - Step 4: Simplify right side
86,540.05x = 3,553,201,133.39 - Step 5: Solve for x
x = 3,553,201,133.39/86,540.05 - Step 6: Final answer
x = 41,058.46
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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.