Finding the Fourth Proportional to 90,246.75, 124,542.53 and 49,414.75
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Solution
The fourth proportional to 90,246.75, 124,542.53 and 49,414.75 is: 68,193.46
Step by Step Solution
- Step 1: Write the proportion equation
90,246.75 : 124,542.53 = 49,414.75 : x - Step 2: Convert to fraction form
90,246.75/124,542.53 = 49,414.75/x - Step 3: Cross multiply
90,246.75x = 124,542.53 × 49,414.75 - Step 4: Simplify right side
90,246.75x = 6,154,237,984.32 - Step 5: Solve for x
x = 6,154,237,984.32/90,246.75 - Step 6: Final answer
x = 68,193.46
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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.