Finding the Fourth Proportional to 126,029.07, 189,038.72 and 31,259.49
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Solution
The fourth proportional to 126,029.07, 189,038.72 and 31,259.49 is: 46,888.02
Step by Step Solution
- Step 1: Write the proportion equation
126,029.07 : 189,038.72 = 31,259.49 : x - Step 2: Convert to fraction form
126,029.07/189,038.72 = 31,259.49/x - Step 3: Cross multiply
126,029.07x = 189,038.72 × 31,259.49 - Step 4: Simplify right side
126,029.07x = 5,909,253,821.16 - Step 5: Solve for x
x = 5,909,253,821.16/126,029.07 - Step 6: Final answer
x = 46,888.02
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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.