Finding the Fourth Proportional to 75,069.93, 112,733.64 and 66,655.41
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Solution
The fourth proportional to 75,069.93, 112,733.64 and 66,655.41 is: 100,097.43
Step by Step Solution
- Step 1: Write the proportion equation
75,069.93 : 112,733.64 = 66,655.41 : x - Step 2: Convert to fraction form
75,069.93/112,733.64 = 66,655.41/x - Step 3: Cross multiply
75,069.93x = 112,733.64 × 66,655.41 - Step 4: Simplify right side
75,069.93x = 7,514,306,994.99 - Step 5: Solve for x
x = 7,514,306,994.99/75,069.93 - Step 6: Final answer
x = 100,097.43
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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.