Finding the Fourth Proportional to 87,923.48, 121,324.68 and 49,678.94
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Solution
The fourth proportional to 87,923.48, 121,324.68 and 49,678.94 is: 68,551.44
Step by Step Solution
- Step 1: Write the proportion equation
87,923.48 : 121,324.68 = 49,678.94 : x - Step 2: Convert to fraction form
87,923.48/121,324.68 = 49,678.94/x - Step 3: Cross multiply
87,923.48x = 121,324.68 × 49,678.94 - Step 4: Simplify right side
87,923.48x = 6,027,281,498.24 - Step 5: Solve for x
x = 6,027,281,498.24/87,923.48 - Step 6: Final answer
x = 68,551.44
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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.