Finding the Fourth Proportional to 88,409.28, 122,003.12 and 48,123.84
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Solution
The fourth proportional to 88,409.28, 122,003.12 and 48,123.84 is: 66,409.98
Step by Step Solution
- Step 1: Write the proportion equation
88,409.28 : 122,003.12 = 48,123.84 : x - Step 2: Convert to fraction form
88,409.28/122,003.12 = 48,123.84/x - Step 3: Cross multiply
88,409.28x = 122,003.12 × 48,123.84 - Step 4: Simplify right side
88,409.28x = 5,871,258,626.38 - Step 5: Solve for x
x = 5,871,258,626.38/88,409.28 - Step 6: Final answer
x = 66,409.98
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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.