Finding the Fourth Proportional to 75,678.13, 113,342.23 and 73,053.73
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Solution
The fourth proportional to 75,678.13, 113,342.23 and 73,053.73 is: 109,411.70
Step by Step Solution
- Step 1: Write the proportion equation
75,678.13 : 113,342.23 = 73,053.73 : x - Step 2: Convert to fraction form
75,678.13/113,342.23 = 73,053.73/x - Step 3: Cross multiply
75,678.13x = 113,342.23 × 73,053.73 - Step 4: Simplify right side
75,678.13x = 8,280,072,668.02 - Step 5: Solve for x
x = 8,280,072,668.02/75,678.13 - Step 6: Final answer
x = 109,411.70
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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.