Finding the Fourth Proportional to 76,951.62, 106,237.40 and 58,658.72
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Solution
The fourth proportional to 76,951.62, 106,237.40 and 58,658.72 is: 80,982.70
Step by Step Solution
- Step 1: Write the proportion equation
76,951.62 : 106,237.40 = 58,658.72 : x - Step 2: Convert to fraction form
76,951.62/106,237.40 = 58,658.72/x - Step 3: Cross multiply
76,951.62x = 106,237.40 × 58,658.72 - Step 4: Simplify right side
76,951.62x = 6,231,749,900.13 - Step 5: Solve for x
x = 6,231,749,900.13/76,951.62 - Step 6: Final answer
x = 80,982.70
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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.