Finding the Fourth Proportional to 75,379.92, 113,069.88 and 19,976.08
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Solution
The fourth proportional to 75,379.92, 113,069.88 and 19,976.08 is: 29,964.12
Step by Step Solution
- Step 1: Write the proportion equation
75,379.92 : 113,069.88 = 19,976.08 : x - Step 2: Convert to fraction form
75,379.92/113,069.88 = 19,976.08/x - Step 3: Cross multiply
75,379.92x = 113,069.88 × 19,976.08 - Step 4: Simplify right side
75,379.92x = 2,258,692,968.47 - Step 5: Solve for x
x = 2,258,692,968.47/75,379.92 - Step 6: Final answer
x = 29,964.12
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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.