Finding the Fourth Proportional to 90,344.68, 135,525.39 and 23,785.09
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Solution
The fourth proportional to 90,344.68, 135,525.39 and 23,785.09 is: 35,679.84
Step by Step Solution
- Step 1: Write the proportion equation
90,344.68 : 135,525.39 = 23,785.09 : x - Step 2: Convert to fraction form
90,344.68/135,525.39 = 23,785.09/x - Step 3: Cross multiply
90,344.68x = 135,525.39 × 23,785.09 - Step 4: Simplify right side
90,344.68x = 3,223,483,598.44 - Step 5: Solve for x
x = 3,223,483,598.44/90,344.68 - Step 6: Final answer
x = 35,679.84
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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.