Finding the Fourth Proportional to 76,797.64, 115,178.46 and 29,402.92
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Solution
The fourth proportional to 76,797.64, 115,178.46 and 29,402.92 is: 44,097.49
Step by Step Solution
- Step 1: Write the proportion equation
76,797.64 : 115,178.46 = 29,402.92 : x - Step 2: Convert to fraction form
76,797.64/115,178.46 = 29,402.92/x - Step 3: Cross multiply
76,797.64x = 115,178.46 × 29,402.92 - Step 4: Simplify right side
76,797.64x = 3,386,583,045.10 - Step 5: Solve for x
x = 3,386,583,045.10/76,797.64 - Step 6: Final answer
x = 44,097.49
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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.