Finding the Fourth Proportional to 71,229.54, 106,804.87 and 29,139.19
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Solution
The fourth proportional to 71,229.54, 106,804.87 and 29,139.19 is: 43,692.65
Step by Step Solution
- Step 1: Write the proportion equation
71,229.54 : 106,804.87 = 29,139.19 : x - Step 2: Convert to fraction form
71,229.54/106,804.87 = 29,139.19/x - Step 3: Cross multiply
71,229.54x = 106,804.87 × 29,139.19 - Step 4: Simplify right side
71,229.54x = 3,112,207,399.86 - Step 5: Solve for x
x = 3,112,207,399.86/71,229.54 - Step 6: Final answer
x = 43,692.65
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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.