Finding the Fourth Proportional to 76,992.73, 115,488.99 and 56,065.87
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Solution
The fourth proportional to 76,992.73, 115,488.99 and 56,065.87 is: 84,098.73
Step by Step Solution
- Step 1: Write the proportion equation
76,992.73 : 115,488.99 = 56,065.87 : x - Step 2: Convert to fraction form
76,992.73/115,488.99 = 56,065.87/x - Step 3: Cross multiply
76,992.73x = 115,488.99 × 56,065.87 - Step 4: Simplify right side
76,992.73x = 6,474,990,844.13 - Step 5: Solve for x
x = 6,474,990,844.13/76,992.73 - Step 6: Final answer
x = 84,098.73
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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.