Finding the Fourth Proportional to 99,747.38, 149,649.20 and 40,625.48
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Solution
The fourth proportional to 99,747.38, 149,649.20 and 40,625.48 is: 60,949.67
Step by Step Solution
- Step 1: Write the proportion equation
99,747.38 : 149,649.20 = 40,625.48 : x - Step 2: Convert to fraction form
99,747.38/149,649.20 = 40,625.48/x - Step 3: Cross multiply
99,747.38x = 149,649.20 × 40,625.48 - Step 4: Simplify right side
99,747.38x = 6,079,569,630.24 - Step 5: Solve for x
x = 6,079,569,630.24/99,747.38 - Step 6: Final answer
x = 60,949.67
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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.