Finding the Fourth Proportional to 71,631.96, 107,447.80 and 19,041.44
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Solution
The fourth proportional to 71,631.96, 107,447.80 and 19,041.44 is: 28,562.12
Step by Step Solution
- Step 1: Write the proportion equation
71,631.96 : 107,447.80 = 19,041.44 : x - Step 2: Convert to fraction form
71,631.96/107,447.80 = 19,041.44/x - Step 3: Cross multiply
71,631.96x = 107,447.80 × 19,041.44 - Step 4: Simplify right side
71,631.96x = 2,045,960,836.83 - Step 5: Solve for x
x = 2,045,960,836.83/71,631.96 - Step 6: Final answer
x = 28,562.12
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1.5x scale
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.