Finding the Fourth Proportional to 129,326.44, 193,991.82 and 40,577.80
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Solution
The fourth proportional to 129,326.44, 193,991.82 and 40,577.80 is: 60,867.38
Step by Step Solution
- Step 1: Write the proportion equation
129,326.44 : 193,991.82 = 40,577.80 : x - Step 2: Convert to fraction form
129,326.44/193,991.82 = 40,577.80/x - Step 3: Cross multiply
129,326.44x = 193,991.82 × 40,577.80 - Step 4: Simplify right side
129,326.44x = 7,871,761,273.60 - Step 5: Solve for x
x = 7,871,761,273.60/129,326.44 - Step 6: Final answer
x = 60,867.38
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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.