Finding the Fourth Proportional to 75,547.18, 113,334.54 and 31,149.28
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Solution
The fourth proportional to 75,547.18, 113,334.54 and 31,149.28 is: 46,729.60
Step by Step Solution
- Step 1: Write the proportion equation
75,547.18 : 113,334.54 = 31,149.28 : x - Step 2: Convert to fraction form
75,547.18/113,334.54 = 31,149.28/x - Step 3: Cross multiply
75,547.18x = 113,334.54 × 31,149.28 - Step 4: Simplify right side
75,547.18x = 3,530,289,320.13 - Step 5: Solve for x
x = 3,530,289,320.13/75,547.18 - Step 6: Final answer
x = 46,729.60
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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.