Finding the Fourth Proportional to 77,792.13, 107,344.26 and 43,799.74
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Solution
The fourth proportional to 77,792.13, 107,344.26 and 43,799.74 is: 60,438.64
Step by Step Solution
- Step 1: Write the proportion equation
77,792.13 : 107,344.26 = 43,799.74 : x - Step 2: Convert to fraction form
77,792.13/107,344.26 = 43,799.74/x - Step 3: Cross multiply
77,792.13x = 107,344.26 × 43,799.74 - Step 4: Simplify right side
77,792.13x = 4,701,650,410.13 - Step 5: Solve for x
x = 4,701,650,410.13/77,792.13 - Step 6: Final answer
x = 60,438.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.