Finding the Fourth Proportional to 79,241.97, 119,011.05 and 69,757.68
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Solution
The fourth proportional to 79,241.97, 119,011.05 and 69,757.68 is: 104,766.89
Step by Step Solution
- Step 1: Write the proportion equation
79,241.97 : 119,011.05 = 69,757.68 : x - Step 2: Convert to fraction form
79,241.97/119,011.05 = 69,757.68/x - Step 3: Cross multiply
79,241.97x = 119,011.05 × 69,757.68 - Step 4: Simplify right side
79,241.97x = 8,301,934,742.36 - Step 5: Solve for x
x = 8,301,934,742.36/79,241.97 - Step 6: Final answer
x = 104,766.89
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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.