Finding the Fourth Proportional to 68,463.77, 102,707.79 and 31,022.33
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Solution
The fourth proportional to 68,463.77, 102,707.79 and 31,022.33 is: 46,538.99
Step by Step Solution
- Step 1: Write the proportion equation
68,463.77 : 102,707.79 = 31,022.33 : x - Step 2: Convert to fraction form
68,463.77/102,707.79 = 31,022.33/x - Step 3: Cross multiply
68,463.77x = 102,707.79 × 31,022.33 - Step 4: Simplify right side
68,463.77x = 3,186,234,441.41 - Step 5: Solve for x
x = 3,186,234,441.41/68,463.77 - Step 6: Final answer
x = 46,538.99
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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.