Finding the Fourth Proportional to 96,822.72, 133,418.88 and 69,917.76
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Solution
The fourth proportional to 96,822.72, 133,418.88 and 69,917.76 is: 96,344.63
Step by Step Solution
- Step 1: Write the proportion equation
96,822.72 : 133,418.88 = 69,917.76 : x - Step 2: Convert to fraction form
96,822.72/133,418.88 = 69,917.76/x - Step 3: Cross multiply
96,822.72x = 133,418.88 × 69,917.76 - Step 4: Simplify right side
96,822.72x = 9,328,349,231.31 - Step 5: Solve for x
x = 9,328,349,231.31/96,822.72 - Step 6: Final answer
x = 96,344.63
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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.