Finding the Fourth Proportional to 83,912.31, 125,868.51 and 57,537.09
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Solution
The fourth proportional to 83,912.31, 125,868.51 and 57,537.09 is: 86,305.67
Step by Step Solution
- Step 1: Write the proportion equation
83,912.31 : 125,868.51 = 57,537.09 : x - Step 2: Convert to fraction form
83,912.31/125,868.51 = 57,537.09/x - Step 3: Cross multiply
83,912.31x = 125,868.51 × 57,537.09 - Step 4: Simplify right side
83,912.31x = 7,242,107,788.04 - Step 5: Solve for x
x = 7,242,107,788.04/83,912.31 - Step 6: Final answer
x = 86,305.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.