Finding the Fourth Proportional to 97,882.17, 135,073.79 and 53,169.21
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Solution
The fourth proportional to 97,882.17, 135,073.79 and 53,169.21 is: 73,371.55
Step by Step Solution
- Step 1: Write the proportion equation
97,882.17 : 135,073.79 = 53,169.21 : x - Step 2: Convert to fraction form
97,882.17/135,073.79 = 53,169.21/x - Step 3: Cross multiply
97,882.17x = 135,073.79 × 53,169.21 - Step 4: Simplify right side
97,882.17x = 7,181,766,440.16 - Step 5: Solve for x
x = 7,181,766,440.16/97,882.17 - Step 6: Final answer
x = 73,371.55
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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.