Finding the Fourth Proportional to 128,927.86, 193,342.58 and 50,031.84
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Solution
The fourth proportional to 128,927.86, 193,342.58 and 50,031.84 is: 75,028.66
Step by Step Solution
- Step 1: Write the proportion equation
128,927.86 : 193,342.58 = 50,031.84 : x - Step 2: Convert to fraction form
128,927.86/193,342.58 = 50,031.84/x - Step 3: Cross multiply
128,927.86x = 193,342.58 × 50,031.84 - Step 4: Simplify right side
128,927.86x = 9,673,285,027.75 - Step 5: Solve for x
x = 9,673,285,027.75/128,927.86 - Step 6: Final answer
x = 75,028.66
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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.