Finding the Fourth Proportional to 84,928.96, 117,201.12 and 47,202.40
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Solution
The fourth proportional to 84,928.96, 117,201.12 and 47,202.40 is: 65,138.84
Step by Step Solution
- Step 1: Write the proportion equation
84,928.96 : 117,201.12 = 47,202.40 : x - Step 2: Convert to fraction form
84,928.96/117,201.12 = 47,202.40/x - Step 3: Cross multiply
84,928.96x = 117,201.12 × 47,202.40 - Step 4: Simplify right side
84,928.96x = 5,532,174,146.69 - Step 5: Solve for x
x = 5,532,174,146.69/84,928.96 - Step 6: Final answer
x = 65,138.84
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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.