Finding the Fourth Proportional to 83,683.26, 125,427.42 and 31,059.18
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Solution
The fourth proportional to 83,683.26, 125,427.42 and 31,059.18 is: 46,552.59
Step by Step Solution
- Step 1: Write the proportion equation
83,683.26 : 125,427.42 = 31,059.18 : x - Step 2: Convert to fraction form
83,683.26/125,427.42 = 31,059.18/x - Step 3: Cross multiply
83,683.26x = 125,427.42 × 31,059.18 - Step 4: Simplify right side
83,683.26x = 3,895,672,814.72 - Step 5: Solve for x
x = 3,895,672,814.72/83,683.26 - Step 6: Final answer
x = 46,552.59
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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.