Finding the Fourth Proportional to 71,471.68, 107,209.14 and 27,119.32
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Solution
The fourth proportional to 71,471.68, 107,209.14 and 27,119.32 is: 40,679.59
Step by Step Solution
- Step 1: Write the proportion equation
71,471.68 : 107,209.14 = 27,119.32 : x - Step 2: Convert to fraction form
71,471.68/107,209.14 = 27,119.32/x - Step 3: Cross multiply
71,471.68x = 107,209.14 × 27,119.32 - Step 4: Simplify right side
71,471.68x = 2,907,438,974.58 - Step 5: Solve for x
x = 2,907,438,974.58/71,471.68 - Step 6: Final answer
x = 40,679.59
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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.