Finding the Fourth Proportional to 76,990.57, 115,489.94 and 24,404.15
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Solution
The fourth proportional to 76,990.57, 115,489.94 and 24,404.15 is: 36,607.52
Step by Step Solution
- Step 1: Write the proportion equation
76,990.57 : 115,489.94 = 24,404.15 : x - Step 2: Convert to fraction form
76,990.57/115,489.94 = 24,404.15/x - Step 3: Cross multiply
76,990.57x = 115,489.94 × 24,404.15 - Step 4: Simplify right side
76,990.57x = 2,818,433,985.96 - Step 5: Solve for x
x = 2,818,433,985.96/76,990.57 - Step 6: Final answer
x = 36,607.52
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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.