Finding the Fourth Proportional to 75,942.08, 113,802.36 and 53,743.40
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Solution
The fourth proportional to 75,942.08, 113,802.36 and 53,743.40 is: 80,536.72
Step by Step Solution
- Step 1: Write the proportion equation
75,942.08 : 113,802.36 = 53,743.40 : x - Step 2: Convert to fraction form
75,942.08/113,802.36 = 53,743.40/x - Step 3: Cross multiply
75,942.08x = 113,802.36 × 53,743.40 - Step 4: Simplify right side
75,942.08x = 6,116,125,754.42 - Step 5: Solve for x
x = 6,116,125,754.42/75,942.08 - Step 6: Final answer
x = 80,536.72
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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.