Finding the Fourth Proportional to 71,252.15, 106,811.40 and 26,908.70
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Solution
The fourth proportional to 71,252.15, 106,811.40 and 26,908.70 is: 40,337.81
Step by Step Solution
- Step 1: Write the proportion equation
71,252.15 : 106,811.40 = 26,908.70 : x - Step 2: Convert to fraction form
71,252.15/106,811.40 = 26,908.70/x - Step 3: Cross multiply
71,252.15x = 106,811.40 × 26,908.70 - Step 4: Simplify right side
71,252.15x = 2,874,155,919.18 - Step 5: Solve for x
x = 2,874,155,919.18/71,252.15 - Step 6: Final answer
x = 40,337.81
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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.