Finding the Fourth Proportional to 86,364.42, 119,179.74 and 48,121.99
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Solution
The fourth proportional to 86,364.42, 119,179.74 and 48,121.99 is: 66,406.58
Step by Step Solution
- Step 1: Write the proportion equation
86,364.42 : 119,179.74 = 48,121.99 : x - Step 2: Convert to fraction form
86,364.42/119,179.74 = 48,121.99/x - Step 3: Cross multiply
86,364.42x = 119,179.74 × 48,121.99 - Step 4: Simplify right side
86,364.42x = 5,735,165,660.58 - Step 5: Solve for x
x = 5,735,165,660.58/86,364.42 - Step 6: Final answer
x = 66,406.58
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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.