Finding the Fourth Proportional to 90,289.53, 124,632.99 and 54,481.05
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Solution
The fourth proportional to 90,289.53, 124,632.99 and 54,481.05 is: 75,204.02
Step by Step Solution
- Step 1: Write the proportion equation
90,289.53 : 124,632.99 = 54,481.05 : x - Step 2: Convert to fraction form
90,289.53/124,632.99 = 54,481.05/x - Step 3: Cross multiply
90,289.53x = 124,632.99 × 54,481.05 - Step 4: Simplify right side
90,289.53x = 6,790,135,887.43 - Step 5: Solve for x
x = 6,790,135,887.43/90,289.53 - Step 6: Final answer
x = 75,204.02
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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.