Finding the Fourth Proportional to 74,581.14, 102,922.00 and 40,589.76
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Solution
The fourth proportional to 74,581.14, 102,922.00 and 40,589.76 is: 56,013.88
Step by Step Solution
- Step 1: Write the proportion equation
74,581.14 : 102,922.00 = 40,589.76 : x - Step 2: Convert to fraction form
74,581.14/102,922.00 = 40,589.76/x - Step 3: Cross multiply
74,581.14x = 102,922.00 × 40,589.76 - Step 4: Simplify right side
74,581.14x = 4,177,579,177.25 - Step 5: Solve for x
x = 4,177,579,177.25/74,581.14 - Step 6: Final answer
x = 56,013.88
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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.