Finding the Fourth Proportional to 75,727.44, 104,521.69 and 47,068.75
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Solution
The fourth proportional to 75,727.44, 104,521.69 and 47,068.75 is: 64,965.95
Step by Step Solution
- Step 1: Write the proportion equation
75,727.44 : 104,521.69 = 47,068.75 : x - Step 2: Convert to fraction form
75,727.44/104,521.69 = 47,068.75/x - Step 3: Cross multiply
75,727.44x = 104,521.69 × 47,068.75 - Step 4: Simplify right side
75,727.44x = 4,919,705,060.84 - Step 5: Solve for x
x = 4,919,705,060.84/75,727.44 - Step 6: Final answer
x = 64,965.95
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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.