Finding the Fourth Proportional to 77,706.17, 107,234.35 and 43,714.68
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Solution
The fourth proportional to 77,706.17, 107,234.35 and 43,714.68 is: 60,326.17
Step by Step Solution
- Step 1: Write the proportion equation
77,706.17 : 107,234.35 = 43,714.68 : x - Step 2: Convert to fraction form
77,706.17/107,234.35 = 43,714.68/x - Step 3: Cross multiply
77,706.17x = 107,234.35 × 43,714.68 - Step 4: Simplify right side
77,706.17x = 4,687,715,295.26 - Step 5: Solve for x
x = 4,687,715,295.26/77,706.17 - Step 6: Final answer
x = 60,326.17
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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.