Finding the Fourth Proportional to 88,421.38, 122,024.08 and 48,137.74
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Solution
The fourth proportional to 88,421.38, 122,024.08 and 48,137.74 is: 66,431.48
Step by Step Solution
- Step 1: Write the proportion equation
88,421.38 : 122,024.08 = 48,137.74 : x - Step 2: Convert to fraction form
88,421.38/122,024.08 = 48,137.74/x - Step 3: Cross multiply
88,421.38x = 122,024.08 × 48,137.74 - Step 4: Simplify right side
88,421.38x = 5,873,963,436.78 - Step 5: Solve for x
x = 5,873,963,436.78/88,421.38 - Step 6: Final answer
x = 66,431.48
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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.