Finding the Fourth Proportional to 91,531.14, 126,312.36 and 51,244.74
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Solution
The fourth proportional to 91,531.14, 126,312.36 and 51,244.74 is: 70,717.40
Step by Step Solution
- Step 1: Write the proportion equation
91,531.14 : 126,312.36 = 51,244.74 : x - Step 2: Convert to fraction form
91,531.14/126,312.36 = 51,244.74/x - Step 3: Cross multiply
91,531.14x = 126,312.36 × 51,244.74 - Step 4: Simplify right side
91,531.14x = 6,472,844,046.99 - Step 5: Solve for x
x = 6,472,844,046.99/91,531.14 - Step 6: Final answer
x = 70,717.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.