Finding the Fourth Proportional to 71,349.24, 107,015.34 and 18,762.82
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Solution
The fourth proportional to 71,349.24, 107,015.34 and 18,762.82 is: 28,141.99
Step by Step Solution
- Step 1: Write the proportion equation
71,349.24 : 107,015.34 = 18,762.82 : x - Step 2: Convert to fraction form
71,349.24/107,015.34 = 18,762.82/x - Step 3: Cross multiply
71,349.24x = 107,015.34 × 18,762.82 - Step 4: Simplify right side
71,349.24x = 2,007,909,561.66 - Step 5: Solve for x
x = 2,007,909,561.66/71,349.24 - Step 6: Final answer
x = 28,141.99
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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.