Finding the Fourth Proportional to 74,715.84, 112,073.76 and 43,174.08
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Solution
The fourth proportional to 74,715.84, 112,073.76 and 43,174.08 is: 64,761.12
Step by Step Solution
- Step 1: Write the proportion equation
74,715.84 : 112,073.76 = 43,174.08 : x - Step 2: Convert to fraction form
74,715.84/112,073.76 = 43,174.08/x - Step 3: Cross multiply
74,715.84x = 112,073.76 × 43,174.08 - Step 4: Simplify right side
74,715.84x = 4,838,681,480.14 - Step 5: Solve for x
x = 4,838,681,480.14/74,715.84 - Step 6: Final answer
x = 64,761.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.