Finding the Fourth Proportional to 84,571.29, 126,955.35 and 67,119.03
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Solution
The fourth proportional to 84,571.29, 126,955.35 and 67,119.03 is: 100,756.65
Step by Step Solution
- Step 1: Write the proportion equation
84,571.29 : 126,955.35 = 67,119.03 : x - Step 2: Convert to fraction form
84,571.29/126,955.35 = 67,119.03/x - Step 3: Cross multiply
84,571.29x = 126,955.35 × 67,119.03 - Step 4: Simplify right side
84,571.29x = 8,521,119,945.31 - Step 5: Solve for x
x = 8,521,119,945.31/84,571.29 - Step 6: Final answer
x = 100,756.65
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1.5x scale
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.