Finding the Fourth Proportional to 79,266.24, 109,387.14 and 43,456.14
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Solution
The fourth proportional to 79,266.24, 109,387.14 and 43,456.14 is: 59,969.32
Step by Step Solution
- Step 1: Write the proportion equation
79,266.24 : 109,387.14 = 43,456.14 : x - Step 2: Convert to fraction form
79,266.24/109,387.14 = 43,456.14/x - Step 3: Cross multiply
79,266.24x = 109,387.14 × 43,456.14 - Step 4: Simplify right side
79,266.24x = 4,753,542,870.04 - Step 5: Solve for x
x = 4,753,542,870.04/79,266.24 - Step 6: Final answer
x = 59,969.32
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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.