Finding the Fourth Proportional to 86,939.26, 119,980.64 and 48,696.53
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Solution
The fourth proportional to 86,939.26, 119,980.64 and 48,696.53 is: 67,203.71
Step by Step Solution
- Step 1: Write the proportion equation
86,939.26 : 119,980.64 = 48,696.53 : x - Step 2: Convert to fraction form
86,939.26/119,980.64 = 48,696.53/x - Step 3: Cross multiply
86,939.26x = 119,980.64 × 48,696.53 - Step 4: Simplify right side
86,939.26x = 5,842,640,357.02 - Step 5: Solve for x
x = 5,842,640,357.02/86,939.26 - Step 6: Final answer
x = 67,203.71
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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.