Finding the Fourth Proportional to 72,197.19, 108,283.37 and 19,610.91
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Solution
The fourth proportional to 72,197.19, 108,283.37 and 19,610.91 is: 29,412.99
Step by Step Solution
- Step 1: Write the proportion equation
72,197.19 : 108,283.37 = 19,610.91 : x - Step 2: Convert to fraction form
72,197.19/108,283.37 = 19,610.91/x - Step 3: Cross multiply
72,197.19x = 108,283.37 × 19,610.91 - Step 4: Simplify right side
72,197.19x = 2,123,535,325.51 - Step 5: Solve for x
x = 2,123,535,325.51/72,197.19 - Step 6: Final answer
x = 29,412.99
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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.