Finding the Fourth Proportional to 74,201.69, 111,357.22 and 46,162.99
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Solution
The fourth proportional to 74,201.69, 111,357.22 and 46,162.99 is: 69,278.50
Step by Step Solution
- Step 1: Write the proportion equation
74,201.69 : 111,357.22 = 46,162.99 : x - Step 2: Convert to fraction form
74,201.69/111,357.22 = 46,162.99/x - Step 3: Cross multiply
74,201.69x = 111,357.22 × 46,162.99 - Step 4: Simplify right side
74,201.69x = 5,140,581,839.49 - Step 5: Solve for x
x = 5,140,581,839.49/74,201.69 - Step 6: Final answer
x = 69,278.50
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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.