Finding the Fourth Proportional to 83,840.19, 125,775.81 and 27,684.21
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Solution
The fourth proportional to 83,840.19, 125,775.81 and 27,684.21 is: 41,531.44
Step by Step Solution
- Step 1: Write the proportion equation
83,840.19 : 125,775.81 = 27,684.21 : x - Step 2: Convert to fraction form
83,840.19/125,775.81 = 27,684.21/x - Step 3: Cross multiply
83,840.19x = 125,775.81 × 27,684.21 - Step 4: Simplify right side
83,840.19x = 3,482,003,936.96 - Step 5: Solve for x
x = 3,482,003,936.96/83,840.19 - Step 6: Final answer
x = 41,531.44
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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.