Finding the Fourth Proportional to 77,315.06, 115,805.94 and 52,217.09
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Solution
The fourth proportional to 77,315.06, 115,805.94 and 52,217.09 is: 78,213.08
Step by Step Solution
- Step 1: Write the proportion equation
77,315.06 : 115,805.94 = 52,217.09 : x - Step 2: Convert to fraction form
77,315.06/115,805.94 = 52,217.09/x - Step 3: Cross multiply
77,315.06x = 115,805.94 × 52,217.09 - Step 4: Simplify right side
77,315.06x = 6,047,048,612.48 - Step 5: Solve for x
x = 6,047,048,612.48/77,315.06 - Step 6: Final answer
x = 78,213.08
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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.