Finding the Fourth Proportional to 79,559.24, 109,788.80 and 43,747.12
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Solution
The fourth proportional to 79,559.24, 109,788.80 and 43,747.12 is: 60,369.40
Step by Step Solution
- Step 1: Write the proportion equation
79,559.24 : 109,788.80 = 43,747.12 : x - Step 2: Convert to fraction form
79,559.24/109,788.80 = 43,747.12/x - Step 3: Cross multiply
79,559.24x = 109,788.80 × 43,747.12 - Step 4: Simplify right side
79,559.24x = 4,802,943,808.26 - Step 5: Solve for x
x = 4,802,943,808.26/79,559.24 - Step 6: Final answer
x = 60,369.40
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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.