Finding the Fourth Proportional to 76,744.26, 105,909.93 and 42,752.88
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Solution
The fourth proportional to 76,744.26, 105,909.93 and 42,752.88 is: 59,000.56
Step by Step Solution
- Step 1: Write the proportion equation
76,744.26 : 105,909.93 = 42,752.88 : x - Step 2: Convert to fraction form
76,744.26/105,909.93 = 42,752.88/x - Step 3: Cross multiply
76,744.26x = 105,909.93 × 42,752.88 - Step 4: Simplify right side
76,744.26x = 4,527,954,528.10 - Step 5: Solve for x
x = 4,527,954,528.10/76,744.26 - Step 6: Final answer
x = 59,000.56
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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.