Finding the Fourth Proportional to 88,701.26, 122,405.80 and 48,415.70
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Solution
The fourth proportional to 88,701.26, 122,405.80 and 48,415.70 is: 66,812.60
Step by Step Solution
- Step 1: Write the proportion equation
88,701.26 : 122,405.80 = 48,415.70 : x - Step 2: Convert to fraction form
88,701.26/122,405.80 = 48,415.70/x - Step 3: Cross multiply
88,701.26x = 122,405.80 × 48,415.70 - Step 4: Simplify right side
88,701.26x = 5,926,362,218.29 - Step 5: Solve for x
x = 5,926,362,218.29/88,701.26 - Step 6: Final answer
x = 66,812.60
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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.