Finding the Fourth Proportional to 79,675.98, 109,948.66 and 43,858.99
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Solution
The fourth proportional to 79,675.98, 109,948.66 and 43,858.99 is: 60,523.10
Step by Step Solution
- Step 1: Write the proportion equation
79,675.98 : 109,948.66 = 43,858.99 : x - Step 2: Convert to fraction form
79,675.98/109,948.66 = 43,858.99/x - Step 3: Cross multiply
79,675.98x = 109,948.66 × 43,858.99 - Step 4: Simplify right side
79,675.98x = 4,822,237,179.45 - Step 5: Solve for x
x = 4,822,237,179.45/79,675.98 - Step 6: Final answer
x = 60,523.10
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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.