Finding the Fourth Proportional to 99,542.26, 137,368.30 and 54,830.26
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Solution
The fourth proportional to 99,542.26, 137,368.30 and 54,830.26 is: 75,665.75
Step by Step Solution
- Step 1: Write the proportion equation
99,542.26 : 137,368.30 = 54,830.26 : x - Step 2: Convert to fraction form
99,542.26/137,368.30 = 54,830.26/x - Step 3: Cross multiply
99,542.26x = 137,368.30 × 54,830.26 - Step 4: Simplify right side
99,542.26x = 7,531,939,604.76 - Step 5: Solve for x
x = 7,531,939,604.76/99,542.26 - Step 6: Final answer
x = 75,665.75
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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.