Finding the Fourth Proportional to 86,166.18, 129,249.36 and 27,006.54
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Solution
The fourth proportional to 86,166.18, 129,249.36 and 27,006.54 is: 40,509.84
Step by Step Solution
- Step 1: Write the proportion equation
86,166.18 : 129,249.36 = 27,006.54 : x - Step 2: Convert to fraction form
86,166.18/129,249.36 = 27,006.54/x - Step 3: Cross multiply
86,166.18x = 129,249.36 × 27,006.54 - Step 4: Simplify right side
86,166.18x = 3,490,578,010.81 - Step 5: Solve for x
x = 3,490,578,010.81/86,166.18 - Step 6: Final answer
x = 40,509.84
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1.5x scale
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.