Finding the Fourth Proportional to 91,098.05, 125,773.80 and 57,153.11
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Solution
The fourth proportional to 91,098.05, 125,773.80 and 57,153.11 is: 78,907.99
Step by Step Solution
- Step 1: Write the proportion equation
91,098.05 : 125,773.80 = 57,153.11 : x - Step 2: Convert to fraction form
91,098.05/125,773.80 = 57,153.11/x - Step 3: Cross multiply
91,098.05x = 125,773.80 × 57,153.11 - Step 4: Simplify right side
91,098.05x = 7,188,363,826.52 - Step 5: Solve for x
x = 7,188,363,826.52/91,098.05 - Step 6: Final answer
x = 78,907.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.