Finding the Fourth Proportional to 75,332.24, 112,986.36 and 19,932.56
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Solution
The fourth proportional to 75,332.24, 112,986.36 and 19,932.56 is: 29,895.66
Step by Step Solution
- Step 1: Write the proportion equation
75,332.24 : 112,986.36 = 19,932.56 : x - Step 2: Convert to fraction form
75,332.24/112,986.36 = 19,932.56/x - Step 3: Cross multiply
75,332.24x = 112,986.36 × 19,932.56 - Step 4: Simplify right side
75,332.24x = 2,252,107,399.88 - Step 5: Solve for x
x = 2,252,107,399.88/75,332.24 - Step 6: Final answer
x = 29,895.66
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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.