Finding the Fourth Proportional to 75,297.97, 112,950.75 and 19,138.63
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Solution
The fourth proportional to 75,297.97, 112,950.75 and 19,138.63 is: 28,708.91
Step by Step Solution
- Step 1: Write the proportion equation
75,297.97 : 112,950.75 = 19,138.63 : x - Step 2: Convert to fraction form
75,297.97/112,950.75 = 19,138.63/x - Step 3: Cross multiply
75,297.97x = 112,950.75 × 19,138.63 - Step 4: Simplify right side
75,297.97x = 2,161,722,612.47 - Step 5: Solve for x
x = 2,161,722,612.47/75,297.97 - Step 6: Final answer
x = 28,708.91
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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.