Finding the Fourth Proportional to 84,536.10, 126,793.22 and 31,938.75
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Solution
The fourth proportional to 84,536.10, 126,793.22 and 31,938.75 is: 47,903.99
Step by Step Solution
- Step 1: Write the proportion equation
84,536.10 : 126,793.22 = 31,938.75 : x - Step 2: Convert to fraction form
84,536.10/126,793.22 = 31,938.75/x - Step 3: Cross multiply
84,536.10x = 126,793.22 × 31,938.75 - Step 4: Simplify right side
84,536.10x = 4,049,616,795.58 - Step 5: Solve for x
x = 4,049,616,795.58/84,536.10 - Step 6: Final answer
x = 47,903.99
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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.