Finding the Fourth Proportional to 77,703.13, 107,230.17 and 43,711.65
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Solution
The fourth proportional to 77,703.13, 107,230.17 and 43,711.65 is: 60,321.99
Step by Step Solution
- Step 1: Write the proportion equation
77,703.13 : 107,230.17 = 43,711.65 : x - Step 2: Convert to fraction form
77,703.13/107,230.17 = 43,711.65/x - Step 3: Cross multiply
77,703.13x = 107,230.17 × 43,711.65 - Step 4: Simplify right side
77,703.13x = 4,687,207,258.37 - Step 5: Solve for x
x = 4,687,207,258.37/77,703.13 - Step 6: Final answer
x = 60,321.99
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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.