Finding the Fourth Proportional to 99,907.74, 137,871.08 and 54,584.75
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Solution
The fourth proportional to 99,907.74, 137,871.08 and 54,584.75 is: 75,326.07
Step by Step Solution
- Step 1: Write the proportion equation
99,907.74 : 137,871.08 = 54,584.75 : x - Step 2: Convert to fraction form
99,907.74/137,871.08 = 54,584.75/x - Step 3: Cross multiply
99,907.74x = 137,871.08 × 54,584.75 - Step 4: Simplify right side
99,907.74x = 7,525,657,471.75 - Step 5: Solve for x
x = 7,525,657,471.75/99,907.74 - Step 6: Final answer
x = 75,326.07
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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.