Finding the Fourth Proportional to 75,651.12, 104,384.12 and 48,788.40
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Solution
The fourth proportional to 75,651.12, 104,384.12 and 48,788.40 is: 67,318.69
Step by Step Solution
- Step 1: Write the proportion equation
75,651.12 : 104,384.12 = 48,788.40 : x - Step 2: Convert to fraction form
75,651.12/104,384.12 = 48,788.40/x - Step 3: Cross multiply
75,651.12x = 104,384.12 × 48,788.40 - Step 4: Simplify right side
75,651.12x = 5,092,734,200.21 - Step 5: Solve for x
x = 5,092,734,200.21/75,651.12 - Step 6: Final answer
x = 67,318.69
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1.5x scale
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.