Finding the Fourth Proportional to 90,249.60, 124,543.44 and 49,963.68
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Solution
The fourth proportional to 90,249.60, 124,543.44 and 49,963.68 is: 68,949.32
Step by Step Solution
- Step 1: Write the proportion equation
90,249.60 : 124,543.44 = 49,963.68 : x - Step 2: Convert to fraction form
90,249.60/124,543.44 = 49,963.68/x - Step 3: Cross multiply
90,249.60x = 124,543.44 × 49,963.68 - Step 4: Simplify right side
90,249.60x = 6,222,648,582.26 - Step 5: Solve for x
x = 6,222,648,582.26/90,249.60 - Step 6: Final answer
x = 68,949.32
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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.