Finding the Fourth Proportional to 93,189.92, 128,604.64 and 52,905.44
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Solution
The fourth proportional to 93,189.92, 128,604.64 and 52,905.44 is: 73,010.96
Step by Step Solution
- Step 1: Write the proportion equation
93,189.92 : 128,604.64 = 52,905.44 : x - Step 2: Convert to fraction form
93,189.92/128,604.64 = 52,905.44/x - Step 3: Cross multiply
93,189.92x = 128,604.64 × 52,905.44 - Step 4: Simplify right side
93,189.92x = 6,803,885,065.24 - Step 5: Solve for x
x = 6,803,885,065.24/93,189.92 - Step 6: Final answer
x = 73,010.96
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1.5x scale
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.