Finding the Fourth Proportional to 77,755.63, 107,354.42 and 59,818.99
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Solution
The fourth proportional to 77,755.63, 107,354.42 and 59,818.99 is: 82,589.94
Step by Step Solution
- Step 1: Write the proportion equation
77,755.63 : 107,354.42 = 59,818.99 : x - Step 2: Convert to fraction form
77,755.63/107,354.42 = 59,818.99/x - Step 3: Cross multiply
77,755.63x = 107,354.42 × 59,818.99 - Step 4: Simplify right side
77,755.63x = 6,421,832,976.44 - Step 5: Solve for x
x = 6,421,832,976.44/77,755.63 - Step 6: Final answer
x = 82,589.94
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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.