Finding the Fourth Proportional to 77,387.40, 116,081.11 and 51,085.99
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Solution
The fourth proportional to 77,387.40, 116,081.11 and 51,085.99 is: 76,628.99
Step by Step Solution
- Step 1: Write the proportion equation
77,387.40 : 116,081.11 = 51,085.99 : x - Step 2: Convert to fraction form
77,387.40/116,081.11 = 51,085.99/x - Step 3: Cross multiply
77,387.40x = 116,081.11 × 51,085.99 - Step 4: Simplify right side
77,387.40x = 5,930,118,424.65 - Step 5: Solve for x
x = 5,930,118,424.65/77,387.40 - Step 6: Final answer
x = 76,628.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.