Finding the Fourth Proportional to 81,914.68, 122,901.06 and 46,883.80
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Solution
The fourth proportional to 81,914.68, 122,901.06 and 46,883.80 is: 70,342.32
Step by Step Solution
- Step 1: Write the proportion equation
81,914.68 : 122,901.06 = 46,883.80 : x - Step 2: Convert to fraction form
81,914.68/122,901.06 = 46,883.80/x - Step 3: Cross multiply
81,914.68x = 122,901.06 × 46,883.80 - Step 4: Simplify right side
81,914.68x = 5,762,068,716.83 - Step 5: Solve for x
x = 5,762,068,716.83/81,914.68 - Step 6: Final answer
x = 70,342.32
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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.