Finding the Fourth Proportional to 90,029.61, 124,243.38 and 49,745.99
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Solution
The fourth proportional to 90,029.61, 124,243.38 and 49,745.99 is: 68,650.86
Step by Step Solution
- Step 1: Write the proportion equation
90,029.61 : 124,243.38 = 49,745.99 : x - Step 2: Convert to fraction form
90,029.61/124,243.38 = 49,745.99/x - Step 3: Cross multiply
90,029.61x = 124,243.38 × 49,745.99 - Step 4: Simplify right side
90,029.61x = 6,180,609,939.05 - Step 5: Solve for x
x = 6,180,609,939.05/90,029.61 - Step 6: Final answer
x = 68,650.86
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1.5x scale
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.