Finding the Fourth Proportional to 96,989.70, 133,825.74 and 56,695.68
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Solution
The fourth proportional to 96,989.70, 133,825.74 and 56,695.68 is: 78,228.32
Step by Step Solution
- Step 1: Write the proportion equation
96,989.70 : 133,825.74 = 56,695.68 : x - Step 2: Convert to fraction form
96,989.70/133,825.74 = 56,695.68/x - Step 3: Cross multiply
96,989.70x = 133,825.74 × 56,695.68 - Step 4: Simplify right side
96,989.70x = 7,587,341,330.80 - Step 5: Solve for x
x = 7,587,341,330.80/96,989.70 - Step 6: Final answer
x = 78,228.32
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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.