Finding the Fourth Proportional to 97,871.75, 135,063.15 and 53,159.75
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Solution
The fourth proportional to 97,871.75, 135,063.15 and 53,159.75 is: 73,360.53
Step by Step Solution
- Step 1: Write the proportion equation
97,871.75 : 135,063.15 = 53,159.75 : x - Step 2: Convert to fraction form
97,871.75/135,063.15 = 53,159.75/x - Step 3: Cross multiply
97,871.75x = 135,063.15 × 53,159.75 - Step 4: Simplify right side
97,871.75x = 7,179,923,288.21 - Step 5: Solve for x
x = 7,179,923,288.21/97,871.75 - Step 6: Final answer
x = 73,360.53
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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.