Finding the Fourth Proportional to 80,691.12, 111,356.44 and 44,394.08
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Solution
The fourth proportional to 80,691.12, 111,356.44 and 44,394.08 is: 61,265.31
Step by Step Solution
- Step 1: Write the proportion equation
80,691.12 : 111,356.44 = 44,394.08 : x - Step 2: Convert to fraction form
80,691.12/111,356.44 = 44,394.08/x - Step 3: Cross multiply
80,691.12x = 111,356.44 × 44,394.08 - Step 4: Simplify right side
80,691.12x = 4,943,566,705.88 - Step 5: Solve for x
x = 4,943,566,705.88/80,691.12 - Step 6: Final answer
x = 61,265.31
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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.