Finding the Fourth Proportional to 77,839.74, 107,412.75 and 43,846.74
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Solution
The fourth proportional to 77,839.74, 107,412.75 and 43,846.74 is: 60,505.07
Step by Step Solution
- Step 1: Write the proportion equation
77,839.74 : 107,412.75 = 43,846.74 : x - Step 2: Convert to fraction form
77,839.74/107,412.75 = 43,846.74/x - Step 3: Cross multiply
77,839.74x = 107,412.75 × 43,846.74 - Step 4: Simplify right side
77,839.74x = 4,709,698,921.94 - Step 5: Solve for x
x = 4,709,698,921.94/77,839.74 - Step 6: Final answer
x = 60,505.07
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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.