Finding the Fourth Proportional to 88,891.91, 122,701.72 and 51,181.19
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Solution
The fourth proportional to 88,891.91, 122,701.72 and 51,181.19 is: 70,647.82
Step by Step Solution
- Step 1: Write the proportion equation
88,891.91 : 122,701.72 = 51,181.19 : x - Step 2: Convert to fraction form
88,891.91/122,701.72 = 51,181.19/x - Step 3: Cross multiply
88,891.91x = 122,701.72 × 51,181.19 - Step 4: Simplify right side
88,891.91x = 6,280,019,303.19 - Step 5: Solve for x
x = 6,280,019,303.19/88,891.91 - Step 6: Final answer
x = 70,647.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.