Finding the Fourth Proportional to 79,187.91, 109,278.14 and 43,377.99
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Solution
The fourth proportional to 79,187.91, 109,278.14 and 43,377.99 is: 59,860.98
Step by Step Solution
- Step 1: Write the proportion equation
79,187.91 : 109,278.14 = 43,377.99 : x - Step 2: Convert to fraction form
79,187.91/109,278.14 = 43,377.99/x - Step 3: Cross multiply
79,187.91x = 109,278.14 × 43,377.99 - Step 4: Simplify right side
79,187.91x = 4,740,265,847.25 - Step 5: Solve for x
x = 4,740,265,847.25/79,187.91 - Step 6: Final answer
x = 59,860.98
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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.