Finding the Fourth Proportional to 90,850.62, 136,288.39 and 30,862.99
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Solution
The fourth proportional to 90,850.62, 136,288.39 and 30,862.99 is: 46,298.71
Step by Step Solution
- Step 1: Write the proportion equation
90,850.62 : 136,288.39 = 30,862.99 : x - Step 2: Convert to fraction form
90,850.62/136,288.39 = 30,862.99/x - Step 3: Cross multiply
90,850.62x = 136,288.39 × 30,862.99 - Step 4: Simplify right side
90,850.62x = 4,206,266,536.24 - Step 5: Solve for x
x = 4,206,266,536.24/90,850.62 - Step 6: Final answer
x = 46,298.71
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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.