Finding the Fourth Proportional to 98,172.26, 135,477.74 and 54,564.81
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Solution
The fourth proportional to 98,172.26, 135,477.74 and 54,564.81 is: 75,299.45
Step by Step Solution
- Step 1: Write the proportion equation
98,172.26 : 135,477.74 = 54,564.81 : x - Step 2: Convert to fraction form
98,172.26/135,477.74 = 54,564.81/x - Step 3: Cross multiply
98,172.26x = 135,477.74 × 54,564.81 - Step 4: Simplify right side
98,172.26x = 7,392,317,760.33 - Step 5: Solve for x
x = 7,392,317,760.33/98,172.26 - Step 6: Final answer
x = 75,299.45
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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.