Finding the Fourth Proportional to 74,896.94, 103,358.46 and 42,629.97
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Solution
The fourth proportional to 74,896.94, 103,358.46 and 42,629.97 is: 58,829.75
Step by Step Solution
- Step 1: Write the proportion equation
74,896.94 : 103,358.46 = 42,629.97 : x - Step 2: Convert to fraction form
74,896.94/103,358.46 = 42,629.97/x - Step 3: Cross multiply
74,896.94x = 103,358.46 × 42,629.97 - Step 4: Simplify right side
74,896.94x = 4,406,168,049.05 - Step 5: Solve for x
x = 4,406,168,049.05/74,896.94 - Step 6: Final answer
x = 58,829.75
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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.