Finding the Fourth Proportional to 74,377.14, 102,638.64 and 42,544.14
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Solution
The fourth proportional to 74,377.14, 102,638.64 and 42,544.14 is: 58,709.88
Step by Step Solution
- Step 1: Write the proportion equation
74,377.14 : 102,638.64 = 42,544.14 : x - Step 2: Convert to fraction form
74,377.14/102,638.64 = 42,544.14/x - Step 3: Cross multiply
74,377.14x = 102,638.64 × 42,544.14 - Step 4: Simplify right side
74,377.14x = 4,366,672,444.22 - Step 5: Solve for x
x = 4,366,672,444.22/74,377.14 - Step 6: Final answer
x = 58,709.88
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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.