Finding the Fourth Proportional to 75,251.09, 112,876.83 and 30,878.48
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Solution
The fourth proportional to 75,251.09, 112,876.83 and 30,878.48 is: 46,317.80
Step by Step Solution
- Step 1: Write the proportion equation
75,251.09 : 112,876.83 = 30,878.48 : x - Step 2: Convert to fraction form
75,251.09/112,876.83 = 30,878.48/x - Step 3: Cross multiply
75,251.09x = 112,876.83 × 30,878.48 - Step 4: Simplify right side
75,251.09x = 3,485,464,373.23 - Step 5: Solve for x
x = 3,485,464,373.23/75,251.09 - Step 6: Final answer
x = 46,317.80
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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.