Finding the Fourth Proportional to 70,861.74, 106,305.69 and 29,311.98
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Solution
The fourth proportional to 70,861.74, 106,305.69 and 29,311.98 is: 43,973.38
Step by Step Solution
- Step 1: Write the proportion equation
70,861.74 : 106,305.69 = 29,311.98 : x - Step 2: Convert to fraction form
70,861.74/106,305.69 = 29,311.98/x - Step 3: Cross multiply
70,861.74x = 106,305.69 × 29,311.98 - Step 4: Simplify right side
70,861.74x = 3,116,030,259.17 - Step 5: Solve for x
x = 3,116,030,259.17/70,861.74 - Step 6: Final answer
x = 43,973.38
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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.