Finding the Fourth Proportional to 76,989.90, 115,474.05 and 24,404.70
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Solution
The fourth proportional to 76,989.90, 115,474.05 and 24,404.70 is: 36,603.63
Step by Step Solution
- Step 1: Write the proportion equation
76,989.90 : 115,474.05 = 24,404.70 : x - Step 2: Convert to fraction form
76,989.90/115,474.05 = 24,404.70/x - Step 3: Cross multiply
76,989.90x = 115,474.05 × 24,404.70 - Step 4: Simplify right side
76,989.90x = 2,818,109,548.04 - Step 5: Solve for x
x = 2,818,109,548.04/76,989.90 - Step 6: Final answer
x = 36,603.63
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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.