Finding the Fourth Proportional to 86,396.18, 119,226.20 and 48,682.58
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Solution
The fourth proportional to 86,396.18, 119,226.20 and 48,682.58 is: 67,181.66
Step by Step Solution
- Step 1: Write the proportion equation
86,396.18 : 119,226.20 = 48,682.58 : x - Step 2: Convert to fraction form
86,396.18/119,226.20 = 48,682.58/x - Step 3: Cross multiply
86,396.18x = 119,226.20 × 48,682.58 - Step 4: Simplify right side
86,396.18x = 5,804,239,019.60 - Step 5: Solve for x
x = 5,804,239,019.60/86,396.18 - Step 6: Final answer
x = 67,181.66
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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.