Finding the Fourth Proportional to 71,055.36, 106,583.36 and 18,461.12
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Solution
The fourth proportional to 71,055.36, 106,583.36 and 18,461.12 is: 27,691.76
Step by Step Solution
- Step 1: Write the proportion equation
71,055.36 : 106,583.36 = 18,461.12 : x - Step 2: Convert to fraction form
71,055.36/106,583.36 = 18,461.12/x - Step 3: Cross multiply
71,055.36x = 106,583.36 × 18,461.12 - Step 4: Simplify right side
71,055.36x = 1,967,648,198.96 - Step 5: Solve for x
x = 1,967,648,198.96/71,055.36 - Step 6: Final answer
x = 27,691.76
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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.