Finding the Fourth Proportional to 75,839.97, 113,711.35 and 31,497.33
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Solution
The fourth proportional to 75,839.97, 113,711.35 and 31,497.33 is: 47,225.81
Step by Step Solution
- Step 1: Write the proportion equation
75,839.97 : 113,711.35 = 31,497.33 : x - Step 2: Convert to fraction form
75,839.97/113,711.35 = 31,497.33/x - Step 3: Cross multiply
75,839.97x = 113,711.35 × 31,497.33 - Step 4: Simplify right side
75,839.97x = 3,581,603,915.70 - Step 5: Solve for x
x = 3,581,603,915.70/75,839.97 - Step 6: Final answer
x = 47,225.81
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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.