Finding the Fourth Proportional to 84,218.76, 126,264.92 and 50,931.99
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Solution
The fourth proportional to 84,218.76, 126,264.92 and 50,931.99 is: 76,359.75
Step by Step Solution
- Step 1: Write the proportion equation
84,218.76 : 126,264.92 = 50,931.99 : x - Step 2: Convert to fraction form
84,218.76/126,264.92 = 50,931.99/x - Step 3: Cross multiply
84,218.76x = 126,264.92 × 50,931.99 - Step 4: Simplify right side
84,218.76x = 6,430,923,388.13 - Step 5: Solve for x
x = 6,430,923,388.13/84,218.76 - Step 6: Final answer
x = 76,359.75
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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.