Finding the Fourth Proportional to 52,080.21, 71,870.72 and 28,206.99
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Solution
The fourth proportional to 52,080.21, 71,870.72 and 28,206.99 is: 38,925.66
Step by Step Solution
- Step 1: Write the proportion equation
52,080.21 : 71,870.72 = 28,206.99 : x - Step 2: Convert to fraction form
52,080.21/71,870.72 = 28,206.99/x - Step 3: Cross multiply
52,080.21x = 71,870.72 × 28,206.99 - Step 4: Simplify right side
52,080.21x = 2,027,256,539.30 - Step 5: Solve for x
x = 2,027,256,539.30/52,080.21 - Step 6: Final answer
x = 38,925.66
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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.