Finding the Fourth Proportional to 74,203.38, 111,175.47 and 61,803.09
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Solution
The fourth proportional to 74,203.38, 111,175.47 and 61,803.09 is: 92,596.69
Step by Step Solution
- Step 1: Write the proportion equation
74,203.38 : 111,175.47 = 61,803.09 : x - Step 2: Convert to fraction form
74,203.38/111,175.47 = 61,803.09/x - Step 3: Cross multiply
74,203.38x = 111,175.47 × 61,803.09 - Step 4: Simplify right side
74,203.38x = 6,870,987,578.20 - Step 5: Solve for x
x = 6,870,987,578.20/74,203.38 - Step 6: Final answer
x = 92,596.69
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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.