Finding the Fourth Proportional to 71,252.80, 98,324.79 and 39,419.80
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Solution
The fourth proportional to 71,252.80, 98,324.79 and 39,419.80 is: 54,397.07
Step by Step Solution
- Step 1: Write the proportion equation
71,252.80 : 98,324.79 = 39,419.80 : x - Step 2: Convert to fraction form
71,252.80/98,324.79 = 39,419.80/x - Step 3: Cross multiply
71,252.80x = 98,324.79 × 39,419.80 - Step 4: Simplify right side
71,252.80x = 3,875,943,163.21 - Step 5: Solve for x
x = 3,875,943,163.21/71,252.80 - Step 6: Final answer
x = 54,397.07
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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.