Finding the Fourth Proportional to 83,531.21, 115,265.94 and 47,230.88
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Solution
The fourth proportional to 83,531.21, 115,265.94 and 47,230.88 is: 65,174.58
Step by Step Solution
- Step 1: Write the proportion equation
83,531.21 : 115,265.94 = 47,230.88 : x - Step 2: Convert to fraction form
83,531.21/115,265.94 = 47,230.88/x - Step 3: Cross multiply
83,531.21x = 115,265.94 × 47,230.88 - Step 4: Simplify right side
83,531.21x = 5,444,111,669.18 - Step 5: Solve for x
x = 5,444,111,669.18/83,531.21 - Step 6: Final answer
x = 65,174.58
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1.5x scale
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.