Finding the Fourth Proportional to 75,343.92, 103,983.48 and 41,812.08
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Solution
The fourth proportional to 75,343.92, 103,983.48 and 41,812.08 is: 57,705.59
Step by Step Solution
- Step 1: Write the proportion equation
75,343.92 : 103,983.48 = 41,812.08 : x - Step 2: Convert to fraction form
75,343.92/103,983.48 = 41,812.08/x - Step 3: Cross multiply
75,343.92x = 103,983.48 × 41,812.08 - Step 4: Simplify right side
75,343.92x = 4,347,765,584.44 - Step 5: Solve for x
x = 4,347,765,584.44/75,343.92 - Step 6: Final answer
x = 57,705.59
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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.