Finding the Fourth Proportional to 86,361.64, 129,547.08 and 27,201.92
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Solution
The fourth proportional to 86,361.64, 129,547.08 and 27,201.92 is: 40,804.34
Step by Step Solution
- Step 1: Write the proportion equation
86,361.64 : 129,547.08 = 27,201.92 : x - Step 2: Convert to fraction form
86,361.64/129,547.08 = 27,201.92/x - Step 3: Cross multiply
86,361.64x = 129,547.08 × 27,201.92 - Step 4: Simplify right side
86,361.64x = 3,523,929,306.39 - Step 5: Solve for x
x = 3,523,929,306.39/86,361.64 - Step 6: Final answer
x = 40,804.34
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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.