Finding the Fourth Proportional to 77,011.20, 115,508.97 and 52,210.62
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Solution
The fourth proportional to 77,011.20, 115,508.97 and 52,210.62 is: 78,310.62
Step by Step Solution
- Step 1: Write the proportion equation
77,011.20 : 115,508.97 = 52,210.62 : x - Step 2: Convert to fraction form
77,011.20/115,508.97 = 52,210.62/x - Step 3: Cross multiply
77,011.20x = 115,508.97 × 52,210.62 - Step 4: Simplify right side
77,011.20x = 6,030,794,939.26 - Step 5: Solve for x
x = 6,030,794,939.26/77,011.20 - Step 6: Final answer
x = 78,310.62
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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.