Finding the Fourth Proportional to 75,129.60, 112,652.28 and 51,463.87
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Solution
The fourth proportional to 75,129.60, 112,652.28 and 51,463.87 is: 77,166.95
Step by Step Solution
- Step 1: Write the proportion equation
75,129.60 : 112,652.28 = 51,463.87 : x - Step 2: Convert to fraction form
75,129.60/112,652.28 = 51,463.87/x - Step 3: Cross multiply
75,129.60x = 112,652.28 × 51,463.87 - Step 4: Simplify right side
75,129.60x = 5,797,522,011.49 - Step 5: Solve for x
x = 5,797,522,011.49/75,129.60 - Step 6: Final answer
x = 77,166.95
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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.