Finding the Fourth Proportional to 71,315.80, 106,973.70 and 36,323.80
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Solution
The fourth proportional to 71,315.80, 106,973.70 and 36,323.80 is: 54,485.70
Step by Step Solution
- Step 1: Write the proportion equation
71,315.80 : 106,973.70 = 36,323.80 : x - Step 2: Convert to fraction form
71,315.80/106,973.70 = 36,323.80/x - Step 3: Cross multiply
71,315.80x = 106,973.70 × 36,323.80 - Step 4: Simplify right side
71,315.80x = 3,885,691,284.06 - Step 5: Solve for x
x = 3,885,691,284.06/71,315.80 - Step 6: Final answer
x = 54,485.70
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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.