Finding the Fourth Proportional to 99,232.30, 136,937.41 and 56,789.92
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Solution
The fourth proportional to 99,232.30, 136,937.41 and 56,789.92 is: 78,368.28
Step by Step Solution
- Step 1: Write the proportion equation
99,232.30 : 136,937.41 = 56,789.92 : x - Step 2: Convert to fraction form
99,232.30/136,937.41 = 56,789.92/x - Step 3: Cross multiply
99,232.30x = 136,937.41 × 56,789.92 - Step 4: Simplify right side
99,232.30x = 7,776,664,558.91 - Step 5: Solve for x
x = 7,776,664,558.91/99,232.30 - Step 6: Final answer
x = 78,368.28
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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.