Finding the Fourth Proportional to 75,121.12, 103,663.03 and 41,123.03
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Solution
The fourth proportional to 75,121.12, 103,663.03 and 41,123.03 is: 56,747.52
Step by Step Solution
- Step 1: Write the proportion equation
75,121.12 : 103,663.03 = 41,123.03 : x - Step 2: Convert to fraction form
75,121.12/103,663.03 = 41,123.03/x - Step 3: Cross multiply
75,121.12x = 103,663.03 × 41,123.03 - Step 4: Simplify right side
75,121.12x = 4,262,937,271.46 - Step 5: Solve for x
x = 4,262,937,271.46/75,121.12 - Step 6: Final answer
x = 56,747.52
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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.