Finding the Fourth Proportional to 88,393.98, 121,983.34 and 48,107.74
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Solution
The fourth proportional to 88,393.98, 121,983.34 and 48,107.74 is: 66,388.48
Step by Step Solution
- Step 1: Write the proportion equation
88,393.98 : 121,983.34 = 48,107.74 : x - Step 2: Convert to fraction form
88,393.98/121,983.34 = 48,107.74/x - Step 3: Cross multiply
88,393.98x = 121,983.34 × 48,107.74 - Step 4: Simplify right side
88,393.98x = 5,868,342,319.43 - Step 5: Solve for x
x = 5,868,342,319.43/88,393.98 - Step 6: Final answer
x = 66,388.48
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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.