Finding the Fourth Proportional to 67,955.36, 101,913.60 and 21,195.68
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Solution
The fourth proportional to 67,955.36, 101,913.60 and 21,195.68 is: 31,787.46
Step by Step Solution
- Step 1: Write the proportion equation
67,955.36 : 101,913.60 = 21,195.68 : x - Step 2: Convert to fraction form
67,955.36/101,913.60 = 21,195.68/x - Step 3: Cross multiply
67,955.36x = 101,913.60 × 21,195.68 - Step 4: Simplify right side
67,955.36x = 2,160,128,053.25 - Step 5: Solve for x
x = 2,160,128,053.25/67,955.36 - Step 6: Final answer
x = 31,787.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.