Finding the Fourth Proportional to 94,881.64, 130,838.34 and 81,497.08
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Solution
The fourth proportional to 94,881.64, 130,838.34 and 81,497.08 is: 112,381.52
Step by Step Solution
- Step 1: Write the proportion equation
94,881.64 : 130,838.34 = 81,497.08 : x - Step 2: Convert to fraction form
94,881.64/130,838.34 = 81,497.08/x - Step 3: Cross multiply
94,881.64x = 130,838.34 × 81,497.08 - Step 4: Simplify right side
94,881.64x = 10,662,942,662.05 - Step 5: Solve for x
x = 10,662,942,662.05/94,881.64 - Step 6: Final answer
x = 112,381.52
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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.