Finding the Fourth Proportional to 76,951.70, 115,427.55 and 63,829.70
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Solution
The fourth proportional to 76,951.70, 115,427.55 and 63,829.70 is: 95,744.55
Step by Step Solution
- Step 1: Write the proportion equation
76,951.70 : 115,427.55 = 63,829.70 : x - Step 2: Convert to fraction form
76,951.70/115,427.55 = 63,829.70/x - Step 3: Cross multiply
76,951.70x = 115,427.55 × 63,829.70 - Step 4: Simplify right side
76,951.70x = 7,367,705,888.24 - Step 5: Solve for x
x = 7,367,705,888.24/76,951.70 - Step 6: Final answer
x = 95,744.55
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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.