Finding the Fourth Proportional to 67,985.62, 101,992.87 and 28,519.99
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Solution
The fourth proportional to 67,985.62, 101,992.87 and 28,519.99 is: 42,786.04
Step by Step Solution
- Step 1: Write the proportion equation
67,985.62 : 101,992.87 = 28,519.99 : x - Step 2: Convert to fraction form
67,985.62/101,992.87 = 28,519.99/x - Step 3: Cross multiply
67,985.62x = 101,992.87 × 28,519.99 - Step 4: Simplify right side
67,985.62x = 2,908,835,632.47 - Step 5: Solve for x
x = 2,908,835,632.47/67,985.62 - Step 6: Final answer
x = 42,786.04
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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.