Finding the Fourth Proportional to 75,539.20, 113,357.76 and 69,767.68
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Solution
The fourth proportional to 75,539.20, 113,357.76 and 69,767.68 is: 104,696.74
Step by Step Solution
- Step 1: Write the proportion equation
75,539.20 : 113,357.76 = 69,767.68 : x - Step 2: Convert to fraction form
75,539.20/113,357.76 = 69,767.68/x - Step 3: Cross multiply
75,539.20x = 113,357.76 × 69,767.68 - Step 4: Simplify right side
75,539.20x = 7,908,707,925.20 - Step 5: Solve for x
x = 7,908,707,925.20/75,539.20 - Step 6: Final answer
x = 104,696.74
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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.