Finding the Fourth Proportional to 86,934.88, 119,961.84 and 69,073.12
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Solution
The fourth proportional to 86,934.88, 119,961.84 and 69,073.12 is: 95,314.32
Step by Step Solution
- Step 1: Write the proportion equation
86,934.88 : 119,961.84 = 69,073.12 : x - Step 2: Convert to fraction form
86,934.88/119,961.84 = 69,073.12/x - Step 3: Cross multiply
86,934.88x = 119,961.84 × 69,073.12 - Step 4: Simplify right side
86,934.88x = 8,286,138,569.74 - Step 5: Solve for x
x = 8,286,138,569.74/86,934.88 - Step 6: Final answer
x = 95,314.32
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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.