Finding the Fourth Proportional to 77,636.18, 107,104.20 and 49,326.68
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Solution
The fourth proportional to 77,636.18, 107,104.20 and 49,326.68 is: 68,049.39
Step by Step Solution
- Step 1: Write the proportion equation
77,636.18 : 107,104.20 = 49,326.68 : x - Step 2: Convert to fraction form
77,636.18/107,104.20 = 49,326.68/x - Step 3: Cross multiply
77,636.18x = 107,104.20 × 49,326.68 - Step 4: Simplify right side
77,636.18x = 5,283,094,600.06 - Step 5: Solve for x
x = 5,283,094,600.06/77,636.18 - Step 6: Final answer
x = 68,049.39
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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.