Finding the Fourth Proportional to 93,942.88, 129,649.35 and 51,509.68
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Solution
The fourth proportional to 93,942.88, 129,649.35 and 51,509.68 is: 71,087.84
Step by Step Solution
- Step 1: Write the proportion equation
93,942.88 : 129,649.35 = 51,509.68 : x - Step 2: Convert to fraction form
93,942.88/129,649.35 = 51,509.68/x - Step 3: Cross multiply
93,942.88x = 129,649.35 × 51,509.68 - Step 4: Simplify right side
93,942.88x = 6,678,196,530.71 - Step 5: Solve for x
x = 6,678,196,530.71/93,942.88 - Step 6: Final answer
x = 71,087.84
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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.