Finding the Fourth Proportional to 84,490.98, 126,738.84 and 31,888.74
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Solution
The fourth proportional to 84,490.98, 126,738.84 and 31,888.74 is: 47,834.00
Step by Step Solution
- Step 1: Write the proportion equation
84,490.98 : 126,738.84 = 31,888.74 : x - Step 2: Convert to fraction form
84,490.98/126,738.84 = 31,888.74/x - Step 3: Cross multiply
84,490.98x = 126,738.84 × 31,888.74 - Step 4: Simplify right side
84,490.98x = 4,041,541,916.66 - Step 5: Solve for x
x = 4,041,541,916.66/84,490.98 - Step 6: Final answer
x = 47,834.00
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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.