Finding the Fourth Proportional to 75,511.68, 113,252.40 and 71,764.80
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Solution
The fourth proportional to 75,511.68, 113,252.40 and 71,764.80 is: 107,632.83
Step by Step Solution
- Step 1: Write the proportion equation
75,511.68 : 113,252.40 = 71,764.80 : x - Step 2: Convert to fraction form
75,511.68/113,252.40 = 71,764.80/x - Step 3: Cross multiply
75,511.68x = 113,252.40 × 71,764.80 - Step 4: Simplify right side
75,511.68x = 8,127,535,835.52 - Step 5: Solve for x
x = 8,127,535,835.52/75,511.68 - Step 6: Final answer
x = 107,632.83
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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.