Finding the Fourth Proportional to 66,987.58, 100,387.55 and 50,337.00
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Solution
The fourth proportional to 66,987.58, 100,387.55 and 50,337.00 is: 75,434.99
Step by Step Solution
- Step 1: Write the proportion equation
66,987.58 : 100,387.55 = 50,337.00 : x - Step 2: Convert to fraction form
66,987.58/100,387.55 = 50,337.00/x - Step 3: Cross multiply
66,987.58x = 100,387.55 × 50,337.00 - Step 4: Simplify right side
66,987.58x = 5,053,207,602.41 - Step 5: Solve for x
x = 5,053,207,602.41/66,987.58 - Step 6: Final answer
x = 75,434.99
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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.