Finding the Fourth Proportional to 129,032.21, 193,548.28 and 40,293.32
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Solution
The fourth proportional to 129,032.21, 193,548.28 and 40,293.32 is: 60,439.96
Step by Step Solution
- Step 1: Write the proportion equation
129,032.21 : 193,548.28 = 40,293.32 : x - Step 2: Convert to fraction form
129,032.21/193,548.28 = 40,293.32/x - Step 3: Cross multiply
129,032.21x = 193,548.28 × 40,293.32 - Step 4: Simplify right side
129,032.21x = 7,798,701,713.01 - Step 5: Solve for x
x = 7,798,701,713.01/129,032.21 - Step 6: Final answer
x = 60,439.96
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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.