Finding the Fourth Proportional to 76,713.20, 105,853.20 and 44,876.08
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Solution
The fourth proportional to 76,713.20, 105,853.20 and 44,876.08 is: 61,922.55
Step by Step Solution
- Step 1: Write the proportion equation
76,713.20 : 105,853.20 = 44,876.08 : x - Step 2: Convert to fraction form
76,713.20/105,853.20 = 44,876.08/x - Step 3: Cross multiply
76,713.20x = 105,853.20 × 44,876.08 - Step 4: Simplify right side
76,713.20x = 4,750,276,671.46 - Step 5: Solve for x
x = 4,750,276,671.46/76,713.20 - Step 6: Final answer
x = 61,922.55
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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.