Finding the Fourth Proportional to 87,800.99, 121,164.89 and 47,514.74
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Solution
The fourth proportional to 87,800.99, 121,164.89 and 47,514.74 is: 65,570.08
Step by Step Solution
- Step 1: Write the proportion equation
87,800.99 : 121,164.89 = 47,514.74 : x - Step 2: Convert to fraction form
87,800.99/121,164.89 = 47,514.74/x - Step 3: Cross multiply
87,800.99x = 121,164.89 × 47,514.74 - Step 4: Simplify right side
87,800.99x = 5,757,117,402.08 - Step 5: Solve for x
x = 5,757,117,402.08/87,800.99 - Step 6: Final answer
x = 65,570.08
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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.