Finding the Fourth Proportional to 88,230.10, 121,758.28 and 47,943.87
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Solution
The fourth proportional to 88,230.10, 121,758.28 and 47,943.87 is: 66,162.94
Step by Step Solution
- Step 1: Write the proportion equation
88,230.10 : 121,758.28 = 47,943.87 : x - Step 2: Convert to fraction form
88,230.10/121,758.28 = 47,943.87/x - Step 3: Cross multiply
88,230.10x = 121,758.28 × 47,943.87 - Step 4: Simplify right side
88,230.10x = 5,837,563,147.74 - Step 5: Solve for x
x = 5,837,563,147.74/88,230.10 - Step 6: Final answer
x = 66,162.94
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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.