Finding the Fourth Proportional to 77,133.30, 115,717.28 and 27,213.81
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Solution
The fourth proportional to 77,133.30, 115,717.28 and 27,213.81 is: 40,826.83
Step by Step Solution
- Step 1: Write the proportion equation
77,133.30 : 115,717.28 = 27,213.81 : x - Step 2: Convert to fraction form
77,133.30/115,717.28 = 27,213.81/x - Step 3: Cross multiply
77,133.30x = 115,717.28 × 27,213.81 - Step 4: Simplify right side
77,133.30x = 3,149,107,935.57 - Step 5: Solve for x
x = 3,149,107,935.57/77,133.30 - Step 6: Final answer
x = 40,826.83
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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.