Finding the Fourth Proportional to 86,521.24, 129,781.04 and 27,356.92
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Solution
The fourth proportional to 86,521.24, 129,781.04 and 27,356.92 is: 41,035.12
Step by Step Solution
- Step 1: Write the proportion equation
86,521.24 : 129,781.04 = 27,356.92 : x - Step 2: Convert to fraction form
86,521.24/129,781.04 = 27,356.92/x - Step 3: Cross multiply
86,521.24x = 129,781.04 × 27,356.92 - Step 4: Simplify right side
86,521.24x = 3,550,409,528.80 - Step 5: Solve for x
x = 3,550,409,528.80/86,521.24 - Step 6: Final answer
x = 41,035.12
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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.