Finding the Fourth Proportional to 79,294.78, 109,419.14 and 47,462.99
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Solution
The fourth proportional to 79,294.78, 109,419.14 and 47,462.99 is: 65,494.34
Step by Step Solution
- Step 1: Write the proportion equation
79,294.78 : 109,419.14 = 47,462.99 : x - Step 2: Convert to fraction form
79,294.78/109,419.14 = 47,462.99/x - Step 3: Cross multiply
79,294.78x = 109,419.14 × 47,462.99 - Step 4: Simplify right side
79,294.78x = 5,193,359,310.31 - Step 5: Solve for x
x = 5,193,359,310.31/79,294.78 - Step 6: Final answer
x = 65,494.34
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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.