Finding the Fourth Proportional to 88,421.07, 122,021.08 and 48,135.13
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Solution
The fourth proportional to 88,421.07, 122,021.08 and 48,135.13 is: 66,426.48
Step by Step Solution
- Step 1: Write the proportion equation
88,421.07 : 122,021.08 = 48,135.13 : x - Step 2: Convert to fraction form
88,421.07/122,021.08 = 48,135.13/x - Step 3: Cross multiply
88,421.07x = 122,021.08 × 48,135.13 - Step 4: Simplify right side
88,421.07x = 5,873,500,548.54 - Step 5: Solve for x
x = 5,873,500,548.54/88,421.07 - Step 6: Final answer
x = 66,426.48
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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.