Finding the Fourth Proportional to 72,536.07, 108,783.03 and 30,414.99
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Solution
The fourth proportional to 72,536.07, 108,783.03 and 30,414.99 is: 45,613.65
Step by Step Solution
- Step 1: Write the proportion equation
72,536.07 : 108,783.03 = 30,414.99 : x - Step 2: Convert to fraction form
72,536.07/108,783.03 = 30,414.99/x - Step 3: Cross multiply
72,536.07x = 108,783.03 × 30,414.99 - Step 4: Simplify right side
72,536.07x = 3,308,634,769.62 - Step 5: Solve for x
x = 3,308,634,769.62/72,536.07 - Step 6: Final answer
x = 45,613.65
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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.