Finding the Fourth Proportional to 84,130.35, 126,168.21 and 27,955.38
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Solution
The fourth proportional to 84,130.35, 126,168.21 and 27,955.38 is: 41,923.99
Step by Step Solution
- Step 1: Write the proportion equation
84,130.35 : 126,168.21 = 27,955.38 : x - Step 2: Convert to fraction form
84,130.35/126,168.21 = 27,955.38/x - Step 3: Cross multiply
84,130.35x = 126,168.21 × 27,955.38 - Step 4: Simplify right side
84,130.35x = 3,527,080,254.47 - Step 5: Solve for x
x = 3,527,080,254.47/84,130.35 - Step 6: Final answer
x = 41,923.99
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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.