Finding the Fourth Proportional to 83,853.21, 125,779.82 and 57,477.99
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Solution
The fourth proportional to 83,853.21, 125,779.82 and 57,477.99 is: 86,216.99
Step by Step Solution
- Step 1: Write the proportion equation
83,853.21 : 125,779.82 = 57,477.99 : x - Step 2: Convert to fraction form
83,853.21/125,779.82 = 57,477.99/x - Step 3: Cross multiply
83,853.21x = 125,779.82 × 57,477.99 - Step 4: Simplify right side
83,853.21x = 7,229,571,236.16 - Step 5: Solve for x
x = 7,229,571,236.16/83,853.21 - Step 6: Final answer
x = 86,216.99
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1.5x scale
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.