Finding the Fourth Proportional to 77,491.25, 106,949.10 and 43,043.84
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Solution
The fourth proportional to 77,491.25, 106,949.10 and 43,043.84 is: 59,406.71
Step by Step Solution
- Step 1: Write the proportion equation
77,491.25 : 106,949.10 = 43,043.84 : x - Step 2: Convert to fraction form
77,491.25/106,949.10 = 43,043.84/x - Step 3: Cross multiply
77,491.25x = 106,949.10 × 43,043.84 - Step 4: Simplify right side
77,491.25x = 4,603,499,948.54 - Step 5: Solve for x
x = 4,603,499,948.54/77,491.25 - Step 6: Final answer
x = 59,406.71
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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.