Finding the Fourth Proportional to 74,412.39, 102,716.06 and 49,269.99
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Solution
The fourth proportional to 74,412.39, 102,716.06 and 49,269.99 is: 68,010.43
Step by Step Solution
- Step 1: Write the proportion equation
74,412.39 : 102,716.06 = 49,269.99 : x - Step 2: Convert to fraction form
74,412.39/102,716.06 = 49,269.99/x - Step 3: Cross multiply
74,412.39x = 102,716.06 × 49,269.99 - Step 4: Simplify right side
74,412.39x = 5,060,819,002.69 - Step 5: Solve for x
x = 5,060,819,002.69/74,412.39 - Step 6: Final answer
x = 68,010.43
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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.