Finding the Fourth Proportional to 115,989.74, 173,984.70 and 31,750.60
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Solution
The fourth proportional to 115,989.74, 173,984.70 and 31,750.60 is: 47,625.92
Step by Step Solution
- Step 1: Write the proportion equation
115,989.74 : 173,984.70 = 31,750.60 : x - Step 2: Convert to fraction form
115,989.74/173,984.70 = 31,750.60/x - Step 3: Cross multiply
115,989.74x = 173,984.70 × 31,750.60 - Step 4: Simplify right side
115,989.74x = 5,524,118,101.48 - Step 5: Solve for x
x = 5,524,118,101.48/115,989.74 - Step 6: Final answer
x = 47,625.92
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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.