Finding the Fourth Proportional to 88,660.68, 122,313.12 and 58,407.18
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Solution
The fourth proportional to 88,660.68, 122,313.12 and 58,407.18 is: 80,576.47
Step by Step Solution
- Step 1: Write the proportion equation
88,660.68 : 122,313.12 = 58,407.18 : x - Step 2: Convert to fraction form
88,660.68/122,313.12 = 58,407.18/x - Step 3: Cross multiply
88,660.68x = 122,313.12 × 58,407.18 - Step 4: Simplify right side
88,660.68x = 7,143,964,416.20 - Step 5: Solve for x
x = 7,143,964,416.20/88,660.68 - Step 6: Final answer
x = 80,576.47
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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.