Finding the Fourth Proportional to 74,065.67, 111,051.79 and 40,809.08
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Solution
The fourth proportional to 74,065.67, 111,051.79 and 40,809.08 is: 61,187.88
Step by Step Solution
- Step 1: Write the proportion equation
74,065.67 : 111,051.79 = 40,809.08 : x - Step 2: Convert to fraction form
74,065.67/111,051.79 = 40,809.08/x - Step 3: Cross multiply
74,065.67x = 111,051.79 × 40,809.08 - Step 4: Simplify right side
74,065.67x = 4,531,921,382.25 - Step 5: Solve for x
x = 4,531,921,382.25/74,065.67 - Step 6: Final answer
x = 61,187.88
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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.