Finding the Fourth Proportional to 75,272.26, 112,908.44 and 19,116.58
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Solution
The fourth proportional to 75,272.26, 112,908.44 and 19,116.58 is: 28,674.88
Step by Step Solution
- Step 1: Write the proportion equation
75,272.26 : 112,908.44 = 19,116.58 : x - Step 2: Convert to fraction form
75,272.26/112,908.44 = 19,116.58/x - Step 3: Cross multiply
75,272.26x = 112,908.44 × 19,116.58 - Step 4: Simplify right side
75,272.26x = 2,158,423,225.94 - Step 5: Solve for x
x = 2,158,423,225.94/75,272.26 - Step 6: Final answer
x = 28,674.88
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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.