Finding the Fourth Proportional to 86,173.57, 118,919.51 and 48,448.09
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Solution
The fourth proportional to 86,173.57, 118,919.51 and 48,448.09 is: 66,858.35
Step by Step Solution
- Step 1: Write the proportion equation
86,173.57 : 118,919.51 = 48,448.09 : x - Step 2: Convert to fraction form
86,173.57/118,919.51 = 48,448.09/x - Step 3: Cross multiply
86,173.57x = 118,919.51 × 48,448.09 - Step 4: Simplify right side
86,173.57x = 5,761,423,123.24 - Step 5: Solve for x
x = 5,761,423,123.24/86,173.57 - Step 6: Final answer
x = 66,858.35
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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.