Finding the Fourth Proportional to 74,659.02, 103,021.97 and 45,974.09
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Solution
The fourth proportional to 74,659.02, 103,021.97 and 45,974.09 is: 63,439.63
Step by Step Solution
- Step 1: Write the proportion equation
74,659.02 : 103,021.97 = 45,974.09 : x - Step 2: Convert to fraction form
74,659.02/103,021.97 = 45,974.09/x - Step 3: Cross multiply
74,659.02x = 103,021.97 × 45,974.09 - Step 4: Simplify right side
74,659.02x = 4,736,340,575.78 - Step 5: Solve for x
x = 4,736,340,575.78/74,659.02 - Step 6: Final answer
x = 63,439.63
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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.