Finding the Fourth Proportional to 71,631.74, 107,447.48 and 19,041.22
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Solution
The fourth proportional to 71,631.74, 107,447.48 and 19,041.22 is: 28,561.80
Step by Step Solution
- Step 1: Write the proportion equation
71,631.74 : 107,447.48 = 19,041.22 : x - Step 2: Convert to fraction form
71,631.74/107,447.48 = 19,041.22/x - Step 3: Cross multiply
71,631.74x = 107,447.48 × 19,041.22 - Step 4: Simplify right side
71,631.74x = 2,045,931,105.13 - Step 5: Solve for x
x = 2,045,931,105.13/71,631.74 - Step 6: Final answer
x = 28,561.80
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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.