Finding the Fourth Proportional to 90,649.72, 125,093.05 and 50,365.99
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Solution
The fourth proportional to 90,649.72, 125,093.05 and 50,365.99 is: 69,503.09
Step by Step Solution
- Step 1: Write the proportion equation
90,649.72 : 125,093.05 = 50,365.99 : x - Step 2: Convert to fraction form
90,649.72/125,093.05 = 50,365.99/x - Step 3: Cross multiply
90,649.72x = 125,093.05 × 50,365.99 - Step 4: Simplify right side
90,649.72x = 6,300,435,305.37 - Step 5: Solve for x
x = 6,300,435,305.37/90,649.72 - Step 6: Final answer
x = 69,503.09
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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.