Finding the Fourth Proportional to 77,838.88, 107,418.48 and 44,305.12
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Solution
The fourth proportional to 77,838.88, 107,418.48 and 44,305.12 is: 61,141.54
Step by Step Solution
- Step 1: Write the proportion equation
77,838.88 : 107,418.48 = 44,305.12 : x - Step 2: Convert to fraction form
77,838.88/107,418.48 = 44,305.12/x - Step 3: Cross multiply
77,838.88x = 107,418.48 × 44,305.12 - Step 4: Simplify right side
77,838.88x = 4,759,188,646.62 - Step 5: Solve for x
x = 4,759,188,646.62/77,838.88 - Step 6: Final answer
x = 61,141.54
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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.