Finding the Fourth Proportional to 74,493.68, 102,792.66 and 42,660.68
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Solution
The fourth proportional to 74,493.68, 102,792.66 and 42,660.68 is: 58,866.80
Step by Step Solution
- Step 1: Write the proportion equation
74,493.68 : 102,792.66 = 42,660.68 : x - Step 2: Convert to fraction form
74,493.68/102,792.66 = 42,660.68/x - Step 3: Cross multiply
74,493.68x = 102,792.66 × 42,660.68 - Step 4: Simplify right side
74,493.68x = 4,385,204,774.61 - Step 5: Solve for x
x = 4,385,204,774.61/74,493.68 - Step 6: Final answer
x = 58,866.80
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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.