Finding the Fourth Proportional to 84,240.93, 126,352.74 and 28,074.99
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Solution
The fourth proportional to 84,240.93, 126,352.74 and 28,074.99 is: 42,109.60
Step by Step Solution
- Step 1: Write the proportion equation
84,240.93 : 126,352.74 = 28,074.99 : x - Step 2: Convert to fraction form
84,240.93/126,352.74 = 28,074.99/x - Step 3: Cross multiply
84,240.93x = 126,352.74 × 28,074.99 - Step 4: Simplify right side
84,240.93x = 3,547,351,911.97 - Step 5: Solve for x
x = 3,547,351,911.97/84,240.93 - Step 6: Final answer
x = 42,109.60
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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.