Finding the Fourth Proportional to 73,685.80, 110,528.70 and 18,281.80
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Solution
The fourth proportional to 73,685.80, 110,528.70 and 18,281.80 is: 27,422.70
Step by Step Solution
- Step 1: Write the proportion equation
73,685.80 : 110,528.70 = 18,281.80 : x - Step 2: Convert to fraction form
73,685.80/110,528.70 = 18,281.80/x - Step 3: Cross multiply
73,685.80x = 110,528.70 × 18,281.80 - Step 4: Simplify right side
73,685.80x = 2,020,663,587.66 - Step 5: Solve for x
x = 2,020,663,587.66/73,685.80 - Step 6: Final answer
x = 27,422.70
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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.