Finding the Fourth Proportional to 88,422.70, 122,022.06 and 48,136.80
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Solution
The fourth proportional to 88,422.70, 122,022.06 and 48,136.80 is: 66,428.09
Step by Step Solution
- Step 1: Write the proportion equation
88,422.70 : 122,022.06 = 48,136.80 : x - Step 2: Convert to fraction form
88,422.70/122,022.06 = 48,136.80/x - Step 3: Cross multiply
88,422.70x = 122,022.06 × 48,136.80 - Step 4: Simplify right side
88,422.70x = 5,873,751,497.81 - Step 5: Solve for x
x = 5,873,751,497.81/88,422.70 - Step 6: Final answer
x = 66,428.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.