Finding the Fourth Proportional to 71,561.64, 107,332.74 and 27,199.56
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Solution
The fourth proportional to 71,561.64, 107,332.74 and 27,199.56 is: 40,795.65
Step by Step Solution
- Step 1: Write the proportion equation
71,561.64 : 107,332.74 = 27,199.56 : x - Step 2: Convert to fraction form
71,561.64/107,332.74 = 27,199.56/x - Step 3: Cross multiply
71,561.64x = 107,332.74 × 27,199.56 - Step 4: Simplify right side
71,561.64x = 2,919,403,301.59 - Step 5: Solve for x
x = 2,919,403,301.59/71,561.64 - Step 6: Final answer
x = 40,795.65
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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.