Finding the Fourth Proportional to 85,433.22, 128,160.09 and 35,547.08
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Solution
The fourth proportional to 85,433.22, 128,160.09 and 35,547.08 is: 53,324.88
Step by Step Solution
- Step 1: Write the proportion equation
85,433.22 : 128,160.09 = 35,547.08 : x - Step 2: Convert to fraction form
85,433.22/128,160.09 = 35,547.08/x - Step 3: Cross multiply
85,433.22x = 128,160.09 × 35,547.08 - Step 4: Simplify right side
85,433.22x = 4,555,716,331.24 - Step 5: Solve for x
x = 4,555,716,331.24/85,433.22 - Step 6: Final answer
x = 53,324.88
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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.