Finding the Fourth Proportional to 97,785.73, 134,921.18 and 55,344.26
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Solution
The fourth proportional to 97,785.73, 134,921.18 and 55,344.26 is: 76,361.99
Step by Step Solution
- Step 1: Write the proportion equation
97,785.73 : 134,921.18 = 55,344.26 : x - Step 2: Convert to fraction form
97,785.73/134,921.18 = 55,344.26/x - Step 3: Cross multiply
97,785.73x = 134,921.18 × 55,344.26 - Step 4: Simplify right side
97,785.73x = 7,467,112,865.43 - Step 5: Solve for x
x = 7,467,112,865.43/97,785.73 - Step 6: Final answer
x = 76,361.99
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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.