Finding the Fourth Proportional to 75,671.61, 113,467.99 and 28,247.70
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Solution
The fourth proportional to 75,671.61, 113,467.99 and 28,247.70 is: 42,356.83
Step by Step Solution
- Step 1: Write the proportion equation
75,671.61 : 113,467.99 = 28,247.70 : x - Step 2: Convert to fraction form
75,671.61/113,467.99 = 28,247.70/x - Step 3: Cross multiply
75,671.61x = 113,467.99 × 28,247.70 - Step 4: Simplify right side
75,671.61x = 3,205,209,551.11 - Step 5: Solve for x
x = 3,205,209,551.11/75,671.61 - Step 6: Final answer
x = 42,356.83
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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.