Finding the Fourth Proportional to 67,206.28, 100,809.28 and 19,854.62
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Solution
The fourth proportional to 67,206.28, 100,809.28 and 19,854.62 is: 29,781.89
Step by Step Solution
- Step 1: Write the proportion equation
67,206.28 : 100,809.28 = 19,854.62 : x - Step 2: Convert to fraction form
67,206.28/100,809.28 = 19,854.62/x - Step 3: Cross multiply
67,206.28x = 100,809.28 × 19,854.62 - Step 4: Simplify right side
67,206.28x = 2,001,529,946.87 - Step 5: Solve for x
x = 2,001,529,946.87/67,206.28 - Step 6: Final answer
x = 29,781.89
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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.