Finding the Fourth Proportional to 99,770.41, 149,657.01 and 33,210.79
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Solution
The fourth proportional to 99,770.41, 149,657.01 and 33,210.79 is: 49,816.65
Step by Step Solution
- Step 1: Write the proportion equation
99,770.41 : 149,657.01 = 33,210.79 : x - Step 2: Convert to fraction form
99,770.41/149,657.01 = 33,210.79/x - Step 3: Cross multiply
99,770.41x = 149,657.01 × 33,210.79 - Step 4: Simplify right side
99,770.41x = 4,970,227,531.14 - Step 5: Solve for x
x = 4,970,227,531.14/99,770.41 - Step 6: Final answer
x = 49,816.65
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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.