Finding the Fourth Proportional to 87,862.04, 121,249.44 and 47,575.68
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Solution
The fourth proportional to 87,862.04, 121,249.44 and 47,575.68 is: 65,654.34
Step by Step Solution
- Step 1: Write the proportion equation
87,862.04 : 121,249.44 = 47,575.68 : x - Step 2: Convert to fraction form
87,862.04/121,249.44 = 47,575.68/x - Step 3: Cross multiply
87,862.04x = 121,249.44 × 47,575.68 - Step 4: Simplify right side
87,862.04x = 5,768,524,644.66 - Step 5: Solve for x
x = 5,768,524,644.66/87,862.04 - Step 6: Final answer
x = 65,654.34
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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.