Finding the Fourth Proportional to 96,989.21, 133,825.04 and 56,695.18
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Solution
The fourth proportional to 96,989.21, 133,825.04 and 56,695.18 is: 78,227.62
Step by Step Solution
- Step 1: Write the proportion equation
96,989.21 : 133,825.04 = 56,695.18 : x - Step 2: Convert to fraction form
96,989.21/133,825.04 = 56,695.18/x - Step 3: Cross multiply
96,989.21x = 133,825.04 × 56,695.18 - Step 4: Simplify right side
96,989.21x = 7,587,234,731.31 - Step 5: Solve for x
x = 7,587,234,731.31/96,989.21 - Step 6: Final answer
x = 78,227.62
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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.