Finding the Fourth Proportional to 87,849.81, 121,231.62 and 47,562.66
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Solution
The fourth proportional to 87,849.81, 121,231.62 and 47,562.66 is: 65,635.87
Step by Step Solution
- Step 1: Write the proportion equation
87,849.81 : 121,231.62 = 47,562.66 : x - Step 2: Convert to fraction form
87,849.81/121,231.62 = 47,562.66/x - Step 3: Cross multiply
87,849.81x = 121,231.62 × 47,562.66 - Step 4: Simplify right side
87,849.81x = 5,766,098,323.31 - Step 5: Solve for x
x = 5,766,098,323.31/87,849.81 - Step 6: Final answer
x = 65,635.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.