Finding the Fourth Proportional to 74,714.57, 103,106.18 and 40,723.09
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Solution
The fourth proportional to 74,714.57, 103,106.18 and 40,723.09 is: 56,197.90
Step by Step Solution
- Step 1: Write the proportion equation
74,714.57 : 103,106.18 = 40,723.09 : x - Step 2: Convert to fraction form
74,714.57/103,106.18 = 40,723.09/x - Step 3: Cross multiply
74,714.57x = 103,106.18 × 40,723.09 - Step 4: Simplify right side
74,714.57x = 4,198,802,091.74 - Step 5: Solve for x
x = 4,198,802,091.74/74,714.57 - Step 6: Final answer
x = 56,197.90
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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.