Finding the Fourth Proportional to 91,242.99, 136,864.35 and 28,908.63
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Solution
The fourth proportional to 91,242.99, 136,864.35 and 28,908.63 is: 43,362.90
Step by Step Solution
- Step 1: Write the proportion equation
91,242.99 : 136,864.35 = 28,908.63 : x - Step 2: Convert to fraction form
91,242.99/136,864.35 = 28,908.63/x - Step 3: Cross multiply
91,242.99x = 136,864.35 × 28,908.63 - Step 4: Simplify right side
91,242.99x = 3,956,560,854.34 - Step 5: Solve for x
x = 3,956,560,854.34/91,242.99 - Step 6: Final answer
x = 43,362.90
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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.