Finding the Fourth Proportional to 83,692.74, 115,496.62 and 47,880.54
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Solution
The fourth proportional to 83,692.74, 115,496.62 and 47,880.54 is: 66,075.51
Step by Step Solution
- Step 1: Write the proportion equation
83,692.74 : 115,496.62 = 47,880.54 : x - Step 2: Convert to fraction form
83,692.74/115,496.62 = 47,880.54/x - Step 3: Cross multiply
83,692.74x = 115,496.62 × 47,880.54 - Step 4: Simplify right side
83,692.74x = 5,530,040,533.77 - Step 5: Solve for x
x = 5,530,040,533.77/83,692.74 - Step 6: Final answer
x = 66,075.51
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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.