Finding the Fourth Proportional to 91,708.12, 126,534.18 and 53,975.08
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Solution
The fourth proportional to 91,708.12, 126,534.18 and 53,975.08 is: 74,472.06
Step by Step Solution
- Step 1: Write the proportion equation
91,708.12 : 126,534.18 = 53,975.08 : x - Step 2: Convert to fraction form
91,708.12/126,534.18 = 53,975.08/x - Step 3: Cross multiply
91,708.12x = 126,534.18 × 53,975.08 - Step 4: Simplify right side
91,708.12x = 6,829,692,488.23 - Step 5: Solve for x
x = 6,829,692,488.23/91,708.12 - Step 6: Final answer
x = 74,472.06
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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.