Finding the Fourth Proportional to 86,341.12, 129,528.96 and 27,185.92
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Solution
The fourth proportional to 86,341.12, 129,528.96 and 27,185.92 is: 40,784.32
Step by Step Solution
- Step 1: Write the proportion equation
86,341.12 : 129,528.96 = 27,185.92 : x - Step 2: Convert to fraction form
86,341.12/129,528.96 = 27,185.92/x - Step 3: Cross multiply
86,341.12x = 129,528.96 × 27,185.92 - Step 4: Simplify right side
86,341.12x = 3,521,363,944.24 - Step 5: Solve for x
x = 3,521,363,944.24/86,341.12 - Step 6: Final answer
x = 40,784.32
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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.