Finding the Fourth Proportional to 74,595.63, 102,938.94 and 42,742.38
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Solution
The fourth proportional to 74,595.63, 102,938.94 and 42,742.38 is: 58,982.75
Step by Step Solution
- Step 1: Write the proportion equation
74,595.63 : 102,938.94 = 42,742.38 : x - Step 2: Convert to fraction form
74,595.63/102,938.94 = 42,742.38/x - Step 3: Cross multiply
74,595.63x = 102,938.94 × 42,742.38 - Step 4: Simplify right side
74,595.63x = 4,399,855,290.28 - Step 5: Solve for x
x = 4,399,855,290.28/74,595.63 - Step 6: Final answer
x = 58,982.75
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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.