Finding the Fourth Proportional to 79,088.98, 109,142.78 and 43,278.99
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Solution
The fourth proportional to 79,088.98, 109,142.78 and 43,278.99 is: 59,725.00
Step by Step Solution
- Step 1: Write the proportion equation
79,088.98 : 109,142.78 = 43,278.99 : x - Step 2: Convert to fraction form
79,088.98/109,142.78 = 43,278.99/x - Step 3: Cross multiply
79,088.98x = 109,142.78 × 43,278.99 - Step 4: Simplify right side
79,088.98x = 4,723,589,284.19 - Step 5: Solve for x
x = 4,723,589,284.19/79,088.98 - Step 6: Final answer
x = 59,725.00
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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.