Finding the Fourth Proportional to 91,204.80, 136,893.60 and 56,212.80
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Solution
The fourth proportional to 91,204.80, 136,893.60 and 56,212.80 is: 84,372.45
Step by Step Solution
- Step 1: Write the proportion equation
91,204.80 : 136,893.60 = 56,212.80 : x - Step 2: Convert to fraction form
91,204.80/136,893.60 = 56,212.80/x - Step 3: Cross multiply
91,204.80x = 136,893.60 × 56,212.80 - Step 4: Simplify right side
91,204.80x = 7,695,172,558.08 - Step 5: Solve for x
x = 7,695,172,558.08/91,204.80 - Step 6: Final answer
x = 84,372.45
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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.