Finding the Fourth Proportional to 75,253.68, 112,899.29 and 53,110.31
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Solution
The fourth proportional to 75,253.68, 112,899.29 and 53,110.31 is: 79,678.71
Step by Step Solution
- Step 1: Write the proportion equation
75,253.68 : 112,899.29 = 53,110.31 : x - Step 2: Convert to fraction form
75,253.68/112,899.29 = 53,110.31/x - Step 3: Cross multiply
75,253.68x = 112,899.29 × 53,110.31 - Step 4: Simplify right side
75,253.68x = 5,996,116,226.28 - Step 5: Solve for x
x = 5,996,116,226.28/75,253.68 - Step 6: Final answer
x = 79,678.71
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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.