Finding the Fourth Proportional to 70,958.28, 106,437.98 and 31,504.84
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Solution
The fourth proportional to 70,958.28, 106,437.98 and 31,504.84 is: 47,257.51
Step by Step Solution
- Step 1: Write the proportion equation
70,958.28 : 106,437.98 = 31,504.84 : x - Step 2: Convert to fraction form
70,958.28/106,437.98 = 31,504.84/x - Step 3: Cross multiply
70,958.28x = 106,437.98 × 31,504.84 - Step 4: Simplify right side
70,958.28x = 3,353,311,529.82 - Step 5: Solve for x
x = 3,353,311,529.82/70,958.28 - Step 6: Final answer
x = 47,257.51
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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.