Finding the Fourth Proportional to 81,733.30, 122,660.79 and 60,722.26
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Solution
The fourth proportional to 81,733.30, 122,660.79 and 60,722.26 is: 91,128.59
Step by Step Solution
- Step 1: Write the proportion equation
81,733.30 : 122,660.79 = 60,722.26 : x - Step 2: Convert to fraction form
81,733.30/122,660.79 = 60,722.26/x - Step 3: Cross multiply
81,733.30x = 122,660.79 × 60,722.26 - Step 4: Simplify right side
81,733.30x = 7,448,240,382.19 - Step 5: Solve for x
x = 7,448,240,382.19/81,733.30 - Step 6: Final answer
x = 91,128.59
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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.