Finding the Fourth Proportional to 67,419.68, 100,971.83 and 53,284.84
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Solution
The fourth proportional to 67,419.68, 100,971.83 and 53,284.84 is: 79,802.63
Step by Step Solution
- Step 1: Write the proportion equation
67,419.68 : 100,971.83 = 53,284.84 : x - Step 2: Convert to fraction form
67,419.68/100,971.83 = 53,284.84/x - Step 3: Cross multiply
67,419.68x = 100,971.83 × 53,284.84 - Step 4: Simplify right side
67,419.68x = 5,380,267,686.84 - Step 5: Solve for x
x = 5,380,267,686.84/67,419.68 - Step 6: Final answer
x = 79,802.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.