Finding the Fourth Proportional to 75,305.16, 112,976.73 and 53,161.79
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Solution
The fourth proportional to 75,305.16, 112,976.73 and 53,161.79 is: 79,756.09
Step by Step Solution
- Step 1: Write the proportion equation
75,305.16 : 112,976.73 = 53,161.79 : x - Step 2: Convert to fraction form
75,305.16/112,976.73 = 53,161.79/x - Step 3: Cross multiply
75,305.16x = 112,976.73 × 53,161.79 - Step 4: Simplify right side
75,305.16x = 6,006,045,053.93 - Step 5: Solve for x
x = 6,006,045,053.93/75,305.16 - Step 6: Final answer
x = 79,756.09
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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.