Finding the Fourth Proportional to 98,171.36, 135,473.48 and 54,563.76
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Solution
The fourth proportional to 98,171.36, 135,473.48 and 54,563.76 is: 75,296.32
Step by Step Solution
- Step 1: Write the proportion equation
98,171.36 : 135,473.48 = 54,563.76 : x - Step 2: Convert to fraction form
98,171.36/135,473.48 = 54,563.76/x - Step 3: Cross multiply
98,171.36x = 135,473.48 × 54,563.76 - Step 4: Simplify right side
98,171.36x = 7,391,942,449.08 - Step 5: Solve for x
x = 7,391,942,449.08/98,171.36 - Step 6: Final answer
x = 75,296.32
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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.