Finding the Fourth Proportional to 80,663.24, 120,885.88 and 30,716.09
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Solution
The fourth proportional to 80,663.24, 120,885.88 and 30,716.09 is: 46,032.64
Step by Step Solution
- Step 1: Write the proportion equation
80,663.24 : 120,885.88 = 30,716.09 : x - Step 2: Convert to fraction form
80,663.24/120,885.88 = 30,716.09/x - Step 3: Cross multiply
80,663.24x = 120,885.88 × 30,716.09 - Step 4: Simplify right side
80,663.24x = 3,713,141,569.81 - Step 5: Solve for x
x = 3,713,141,569.81/80,663.24 - Step 6: Final answer
x = 46,032.64
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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.