Finding the Fourth Proportional to 90,850.24, 125,344.16 and 55,028.80
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Solution
The fourth proportional to 90,850.24, 125,344.16 and 55,028.80 is: 75,922.07
Step by Step Solution
- Step 1: Write the proportion equation
90,850.24 : 125,344.16 = 55,028.80 : x - Step 2: Convert to fraction form
90,850.24/125,344.16 = 55,028.80/x - Step 3: Cross multiply
90,850.24x = 125,344.16 × 55,028.80 - Step 4: Simplify right side
90,850.24x = 6,897,538,711.81 - Step 5: Solve for x
x = 6,897,538,711.81/90,850.24 - Step 6: Final answer
x = 75,922.07
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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.