Finding the Fourth Proportional to 76,972.96, 115,462.68 and 24,381.28
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Solution
The fourth proportional to 76,972.96, 115,462.68 and 24,381.28 is: 36,572.95
Step by Step Solution
- Step 1: Write the proportion equation
76,972.96 : 115,462.68 = 24,381.28 : x - Step 2: Convert to fraction form
76,972.96/115,462.68 = 24,381.28/x - Step 3: Cross multiply
76,972.96x = 115,462.68 × 24,381.28 - Step 4: Simplify right side
76,972.96x = 2,815,127,930.63 - Step 5: Solve for x
x = 2,815,127,930.63/76,972.96 - Step 6: Final answer
x = 36,572.95
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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.