Finding the Fourth Proportional to 71,624.13, 107,436.08 and 19,033.62
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Solution
The fourth proportional to 71,624.13, 107,436.08 and 19,033.62 is: 28,550.39
Step by Step Solution
- Step 1: Write the proportion equation
71,624.13 : 107,436.08 = 19,033.62 : x - Step 2: Convert to fraction form
71,624.13/107,436.08 = 19,033.62/x - Step 3: Cross multiply
71,624.13x = 107,436.08 × 19,033.62 - Step 4: Simplify right side
71,624.13x = 2,044,897,058.64 - Step 5: Solve for x
x = 2,044,897,058.64/71,624.13 - Step 6: Final answer
x = 28,550.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.