Finding the Fourth Proportional to 71,294.64, 106,939.68 and 33,881.68
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Solution
The fourth proportional to 71,294.64, 106,939.68 and 33,881.68 is: 50,821.44
Step by Step Solution
- Step 1: Write the proportion equation
71,294.64 : 106,939.68 = 33,881.68 : x - Step 2: Convert to fraction form
71,294.64/106,939.68 = 33,881.68/x - Step 3: Cross multiply
71,294.64x = 106,939.68 × 33,881.68 - Step 4: Simplify right side
71,294.64x = 3,623,296,017.06 - Step 5: Solve for x
x = 3,623,296,017.06/71,294.64 - Step 6: Final answer
x = 50,821.44
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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.