Finding the Fourth Proportional to 72,486.11, 100,126.65 and 60,425.99
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Solution
The fourth proportional to 72,486.11, 100,126.65 and 60,425.99 is: 83,467.74
Step by Step Solution
- Step 1: Write the proportion equation
72,486.11 : 100,126.65 = 60,425.99 : x - Step 2: Convert to fraction form
72,486.11/100,126.65 = 60,425.99/x - Step 3: Cross multiply
72,486.11x = 100,126.65 × 60,425.99 - Step 4: Simplify right side
72,486.11x = 6,050,251,713.18 - Step 5: Solve for x
x = 6,050,251,713.18/72,486.11 - Step 6: Final answer
x = 83,467.74
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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.