Finding the Fourth Proportional to 99,650.70, 149,516.37 and 40,471.02
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Solution
The fourth proportional to 99,650.70, 149,516.37 and 40,471.02 is: 60,722.91
Step by Step Solution
- Step 1: Write the proportion equation
99,650.70 : 149,516.37 = 40,471.02 : x - Step 2: Convert to fraction form
99,650.70/149,516.37 = 40,471.02/x - Step 3: Cross multiply
99,650.70x = 149,516.37 × 40,471.02 - Step 4: Simplify right side
99,650.70x = 6,051,080,000.60 - Step 5: Solve for x
x = 6,051,080,000.60/99,650.70 - Step 6: Final answer
x = 60,722.91
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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.