Finding the Fourth Proportional to 68,673.11, 102,825.09 and 43,577.28
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Solution
The fourth proportional to 68,673.11, 102,825.09 and 43,577.28 is: 65,248.80
Step by Step Solution
- Step 1: Write the proportion equation
68,673.11 : 102,825.09 = 43,577.28 : x - Step 2: Convert to fraction form
68,673.11/102,825.09 = 43,577.28/x - Step 3: Cross multiply
68,673.11x = 102,825.09 × 43,577.28 - Step 4: Simplify right side
68,673.11x = 4,480,837,737.96 - Step 5: Solve for x
x = 4,480,837,737.96/68,673.11 - Step 6: Final answer
x = 65,248.80
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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.