Finding the Fourth Proportional to 129,056.49, 193,577.85 and 40,299.84
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Solution
The fourth proportional to 129,056.49, 193,577.85 and 40,299.84 is: 60,447.61
Step by Step Solution
- Step 1: Write the proportion equation
129,056.49 : 193,577.85 = 40,299.84 : x - Step 2: Convert to fraction form
129,056.49/193,577.85 = 40,299.84/x - Step 3: Cross multiply
129,056.49x = 193,577.85 × 40,299.84 - Step 4: Simplify right side
129,056.49x = 7,801,156,382.54 - Step 5: Solve for x
x = 7,801,156,382.54/129,056.49 - Step 6: Final answer
x = 60,447.61
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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.