Finding the Fourth Proportional to 72,151.68, 108,227.16 and 19,561.08
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Solution
The fourth proportional to 72,151.68, 108,227.16 and 19,561.08 is: 29,341.52
Step by Step Solution
- Step 1: Write the proportion equation
72,151.68 : 108,227.16 = 19,561.08 : x - Step 2: Convert to fraction form
72,151.68/108,227.16 = 19,561.08/x - Step 3: Cross multiply
72,151.68x = 108,227.16 × 19,561.08 - Step 4: Simplify right side
72,151.68x = 2,117,040,134.93 - Step 5: Solve for x
x = 2,117,040,134.93/72,151.68 - Step 6: Final answer
x = 29,341.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.