Finding the Fourth Proportional to 75,877.20, 113,828.18 and 28,495.98
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Solution
The fourth proportional to 75,877.20, 113,828.18 and 28,495.98 is: 42,748.62
Step by Step Solution
- Step 1: Write the proportion equation
75,877.20 : 113,828.18 = 28,495.98 : x - Step 2: Convert to fraction form
75,877.20/113,828.18 = 28,495.98/x - Step 3: Cross multiply
75,877.20x = 113,828.18 × 28,495.98 - Step 4: Simplify right side
75,877.20x = 3,243,645,398.24 - Step 5: Solve for x
x = 3,243,645,398.24/75,877.20 - Step 6: Final answer
x = 42,748.62
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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.