Finding the Fourth Proportional to 77,340.18, 106,729.65 and 43,806.18
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Solution
The fourth proportional to 77,340.18, 106,729.65 and 43,806.18 is: 60,452.64
Step by Step Solution
- Step 1: Write the proportion equation
77,340.18 : 106,729.65 = 43,806.18 : x - Step 2: Convert to fraction form
77,340.18/106,729.65 = 43,806.18/x - Step 3: Cross multiply
77,340.18x = 106,729.65 × 43,806.18 - Step 4: Simplify right side
77,340.18x = 4,675,418,259.24 - Step 5: Solve for x
x = 4,675,418,259.24/77,340.18 - Step 6: Final answer
x = 60,452.64
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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.