Finding the Fourth Proportional to 75,419.22, 104,073.93 and 41,421.09
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Solution
The fourth proportional to 75,419.22, 104,073.93 and 41,421.09 is: 57,158.58
Step by Step Solution
- Step 1: Write the proportion equation
75,419.22 : 104,073.93 = 41,421.09 : x - Step 2: Convert to fraction form
75,419.22/104,073.93 = 41,421.09/x - Step 3: Cross multiply
75,419.22x = 104,073.93 × 41,421.09 - Step 4: Simplify right side
75,419.22x = 4,310,855,621.18 - Step 5: Solve for x
x = 4,310,855,621.18/75,419.22 - Step 6: Final answer
x = 57,158.58
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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.