Finding the Fourth Proportional to 84,582.11, 126,873.11 and 78,977.07
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Solution
The fourth proportional to 84,582.11, 126,873.11 and 78,977.07 is: 118,465.56
Step by Step Solution
- Step 1: Write the proportion equation
84,582.11 : 126,873.11 = 78,977.07 : x - Step 2: Convert to fraction form
84,582.11/126,873.11 = 78,977.07/x - Step 3: Cross multiply
84,582.11x = 126,873.11 × 78,977.07 - Step 4: Simplify right side
84,582.11x = 10,020,066,687.03 - Step 5: Solve for x
x = 10,020,066,687.03/84,582.11 - Step 6: Final answer
x = 118,465.56
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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.