Finding the Fourth Proportional to 90,692.70, 125,190.80 and 60,466.99
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Solution
The fourth proportional to 90,692.70, 125,190.80 and 60,466.99 is: 83,467.70
Step by Step Solution
- Step 1: Write the proportion equation
90,692.70 : 125,190.80 = 60,466.99 : x - Step 2: Convert to fraction form
90,692.70/125,190.80 = 60,466.99/x - Step 3: Cross multiply
90,692.70x = 125,190.80 × 60,466.99 - Step 4: Simplify right side
90,692.70x = 7,569,910,851.69 - Step 5: Solve for x
x = 7,569,910,851.69/90,692.70 - Step 6: Final answer
x = 83,467.70
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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.