Finding the Fourth Proportional to 79,674.98, 109,947.29 and 43,857.99
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Solution
The fourth proportional to 79,674.98, 109,947.29 and 43,857.99 is: 60,521.72
Step by Step Solution
- Step 1: Write the proportion equation
79,674.98 : 109,947.29 = 43,857.99 : x - Step 2: Convert to fraction form
79,674.98/109,947.29 = 43,857.99/x - Step 3: Cross multiply
79,674.98x = 109,947.29 × 43,857.99 - Step 4: Simplify right side
79,674.98x = 4,822,066,926.06 - Step 5: Solve for x
x = 4,822,066,926.06/79,674.98 - Step 6: Final answer
x = 60,521.72
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1.5x scale
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.