Finding the Fourth Proportional to 77,959.49, 107,584.43 and 49,291.70
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Solution
The fourth proportional to 77,959.49, 107,584.43 and 49,291.70 is: 68,022.75
Step by Step Solution
- Step 1: Write the proportion equation
77,959.49 : 107,584.43 = 49,291.70 : x - Step 2: Convert to fraction form
77,959.49/107,584.43 = 49,291.70/x - Step 3: Cross multiply
77,959.49x = 107,584.43 × 49,291.70 - Step 4: Simplify right side
77,959.49x = 5,303,018,663.85 - Step 5: Solve for x
x = 5,303,018,663.85/77,959.49 - Step 6: Final answer
x = 68,022.75
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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.