Finding the Fourth Proportional to 74,524.43, 102,842.68 and 40,532.18
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Solution
The fourth proportional to 74,524.43, 102,842.68 and 40,532.18 is: 55,933.85
Step by Step Solution
- Step 1: Write the proportion equation
74,524.43 : 102,842.68 = 40,532.18 : x - Step 2: Convert to fraction form
74,524.43/102,842.68 = 40,532.18/x - Step 3: Cross multiply
74,524.43x = 102,842.68 × 40,532.18 - Step 4: Simplify right side
74,524.43x = 4,168,438,017.44 - Step 5: Solve for x
x = 4,168,438,017.44/74,524.43 - Step 6: Final answer
x = 55,933.85
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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.