Finding the Fourth Proportional to 84,395.76, 126,476.88 and 71,850.48
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Solution
The fourth proportional to 84,395.76, 126,476.88 and 71,850.48 is: 107,676.32
Step by Step Solution
- Step 1: Write the proportion equation
84,395.76 : 126,476.88 = 71,850.48 : x - Step 2: Convert to fraction form
84,395.76/126,476.88 = 71,850.48/x - Step 3: Cross multiply
84,395.76x = 126,476.88 × 71,850.48 - Step 4: Simplify right side
84,395.76x = 9,087,424,536.90 - Step 5: Solve for x
x = 9,087,424,536.90/84,395.76 - Step 6: Final answer
x = 107,676.32
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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.