Finding the Fourth Proportional to 84,362.31, 116,431.74 and 81,593.28
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Solution
The fourth proportional to 84,362.31, 116,431.74 and 81,593.28 is: 112,610.09
Step by Step Solution
- Step 1: Write the proportion equation
84,362.31 : 116,431.74 = 81,593.28 : x - Step 2: Convert to fraction form
84,362.31/116,431.74 = 81,593.28/x - Step 3: Cross multiply
84,362.31x = 116,431.74 × 81,593.28 - Step 4: Simplify right side
84,362.31x = 9,500,047,562.71 - Step 5: Solve for x
x = 9,500,047,562.71/84,362.31 - Step 6: Final answer
x = 112,610.09
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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.