Finding the Fourth Proportional to 77,849.30, 107,432.36 and 43,858.19
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Solution
The fourth proportional to 77,849.30, 107,432.36 and 43,858.19 is: 60,524.49
Step by Step Solution
- Step 1: Write the proportion equation
77,849.30 : 107,432.36 = 43,858.19 : x - Step 2: Convert to fraction form
77,849.30/107,432.36 = 43,858.19/x - Step 3: Cross multiply
77,849.30x = 107,432.36 × 43,858.19 - Step 4: Simplify right side
77,849.30x = 4,711,788,857.03 - Step 5: Solve for x
x = 4,711,788,857.03/77,849.30 - Step 6: Final answer
x = 60,524.49
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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.