Finding the Fourth Proportional to 107,810.28, 161,707.84 and 40,329.44
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Solution
The fourth proportional to 107,810.28, 161,707.84 and 40,329.44 is: 60,491.32
Step by Step Solution
- Step 1: Write the proportion equation
107,810.28 : 161,707.84 = 40,329.44 : x - Step 2: Convert to fraction form
107,810.28/161,707.84 = 40,329.44/x - Step 3: Cross multiply
107,810.28x = 161,707.84 × 40,329.44 - Step 4: Simplify right side
107,810.28x = 6,521,586,630.81 - Step 5: Solve for x
x = 6,521,586,630.81/107,810.28 - Step 6: Final answer
x = 60,491.32
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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.