Finding the Fourth Proportional to 75,828.16, 113,755.74 and 25,913.80
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Solution
The fourth proportional to 75,828.16, 113,755.74 and 25,913.80 is: 38,875.31
Step by Step Solution
- Step 1: Write the proportion equation
75,828.16 : 113,755.74 = 25,913.80 : x - Step 2: Convert to fraction form
75,828.16/113,755.74 = 25,913.80/x - Step 3: Cross multiply
75,828.16x = 113,755.74 × 25,913.80 - Step 4: Simplify right side
75,828.16x = 2,947,843,495.21 - Step 5: Solve for x
x = 2,947,843,495.21/75,828.16 - Step 6: Final answer
x = 38,875.31
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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.