Finding the Fourth Proportional to 84,146.36, 116,132.78 and 48,343.29
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Solution
The fourth proportional to 84,146.36, 116,132.78 and 48,343.29 is: 66,719.95
Step by Step Solution
- Step 1: Write the proportion equation
84,146.36 : 116,132.78 = 48,343.29 : x - Step 2: Convert to fraction form
84,146.36/116,132.78 = 48,343.29/x - Step 3: Cross multiply
84,146.36x = 116,132.78 × 48,343.29 - Step 4: Simplify right side
84,146.36x = 5,614,240,824.05 - Step 5: Solve for x
x = 5,614,240,824.05/84,146.36 - Step 6: Final answer
x = 66,719.95
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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.