Finding the Fourth Proportional to 88,034.99, 121,486.43 and 47,747.21
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Solution
The fourth proportional to 88,034.99, 121,486.43 and 47,747.21 is: 65,890.14
Step by Step Solution
- Step 1: Write the proportion equation
88,034.99 : 121,486.43 = 47,747.21 : x - Step 2: Convert to fraction form
88,034.99/121,486.43 = 47,747.21/x - Step 3: Cross multiply
88,034.99x = 121,486.43 × 47,747.21 - Step 4: Simplify right side
88,034.99x = 5,800,637,597.30 - Step 5: Solve for x
x = 5,800,637,597.30/88,034.99 - Step 6: Final answer
x = 65,890.14
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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.