Finding the Fourth Proportional to 75,422.24, 113,147.94 and 28,671.47
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Solution
The fourth proportional to 75,422.24, 113,147.94 and 28,671.47 is: 43,012.75
Step by Step Solution
- Step 1: Write the proportion equation
75,422.24 : 113,147.94 = 28,671.47 : x - Step 2: Convert to fraction form
75,422.24/113,147.94 = 28,671.47/x - Step 3: Cross multiply
75,422.24x = 113,147.94 × 28,671.47 - Step 4: Simplify right side
75,422.24x = 3,244,117,572.08 - Step 5: Solve for x
x = 3,244,117,572.08/75,422.24 - Step 6: Final answer
x = 43,012.75
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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.