Finding the Fourth Proportional to 88,388.19, 121,974.44 and 48,644.19
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Solution
The fourth proportional to 88,388.19, 121,974.44 and 48,644.19 is: 67,128.28
Step by Step Solution
- Step 1: Write the proportion equation
88,388.19 : 121,974.44 = 48,644.19 : x - Step 2: Convert to fraction form
88,388.19/121,974.44 = 48,644.19/x - Step 3: Cross multiply
88,388.19x = 121,974.44 × 48,644.19 - Step 4: Simplify right side
88,388.19x = 5,933,347,591.28 - Step 5: Solve for x
x = 5,933,347,591.28/88,388.19 - Step 6: Final answer
x = 67,128.28
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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.