Finding the Fourth Proportional to 75,282.73, 103,629.37 and 65,069.06
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Solution
The fourth proportional to 75,282.73, 103,629.37 and 65,069.06 is: 89,569.89
Step by Step Solution
- Step 1: Write the proportion equation
75,282.73 : 103,629.37 = 65,069.06 : x - Step 2: Convert to fraction form
75,282.73/103,629.37 = 65,069.06/x - Step 3: Cross multiply
75,282.73x = 103,629.37 × 65,069.06 - Step 4: Simplify right side
75,282.73x = 6,743,065,694.29 - Step 5: Solve for x
x = 6,743,065,694.29/75,282.73 - Step 6: Final answer
x = 89,569.89
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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.