Finding the Fourth Proportional to 78,068.98, 107,725.44 and 44,073.28
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Solution
The fourth proportional to 78,068.98, 107,725.44 and 44,073.28 is: 60,815.62
Step by Step Solution
- Step 1: Write the proportion equation
78,068.98 : 107,725.44 = 44,073.28 : x - Step 2: Convert to fraction form
78,068.98/107,725.44 = 44,073.28/x - Step 3: Cross multiply
78,068.98x = 107,725.44 × 44,073.28 - Step 4: Simplify right side
78,068.98x = 4,747,813,480.24 - Step 5: Solve for x
x = 4,747,813,480.24/78,068.98 - Step 6: Final answer
x = 60,815.62
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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.