Finding the Fourth Proportional to 72,034.70, 107,914.35 and 38,743.70
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Solution
The fourth proportional to 72,034.70, 107,914.35 and 38,743.70 is: 58,041.49
Step by Step Solution
- Step 1: Write the proportion equation
72,034.70 : 107,914.35 = 38,743.70 : x - Step 2: Convert to fraction form
72,034.70/107,914.35 = 38,743.70/x - Step 3: Cross multiply
72,034.70x = 107,914.35 × 38,743.70 - Step 4: Simplify right side
72,034.70x = 4,181,001,202.10 - Step 5: Solve for x
x = 4,181,001,202.10/72,034.70 - Step 6: Final answer
x = 58,041.49
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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.