Finding the Fourth Proportional to 75,625.60, 113,438.40 and 63,815.80
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Solution
The fourth proportional to 75,625.60, 113,438.40 and 63,815.80 is: 95,723.70
Step by Step Solution
- Step 1: Write the proportion equation
75,625.60 : 113,438.40 = 63,815.80 : x - Step 2: Convert to fraction form
75,625.60/113,438.40 = 63,815.80/x - Step 3: Cross multiply
75,625.60x = 113,438.40 × 63,815.80 - Step 4: Simplify right side
75,625.60x = 7,239,162,246.72 - Step 5: Solve for x
x = 7,239,162,246.72/75,625.60 - Step 6: Final answer
x = 95,723.70
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1.5x scale
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.