Finding the Fourth Proportional to 91,333.62, 125,958.50 and 76,070.84
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Solution
The fourth proportional to 91,333.62, 125,958.50 and 76,070.84 is: 104,909.55
Step by Step Solution
- Step 1: Write the proportion equation
91,333.62 : 125,958.50 = 76,070.84 : x - Step 2: Convert to fraction form
91,333.62/125,958.50 = 76,070.84/x - Step 3: Cross multiply
91,333.62x = 125,958.50 × 76,070.84 - Step 4: Simplify right side
91,333.62x = 9,581,768,900.14 - Step 5: Solve for x
x = 9,581,768,900.14/91,333.62 - Step 6: Final answer
x = 104,909.55
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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.